First things first - the staff are absolutely incredible, & that alone made it felt like a much fancier hotel than we'd paid for. Always smiling, greeting and bowing when we'd enter or leave, getting & holding lifts for us, everything was just amazing and all the great things we'd heard about Japanese hospitality and politeness. Any language difficulties overcome easily with their translation devices. We stayed here as a family of 4 (2A, 12yo, 5yo) for 7 nights, and opted for two rooms over one larger single room with 3 beds and ottoman. We had one Twin Room and one King Room. The rooms were large, one larger than the other with a wider hall, but ample space for all our luggage (alot). The beds were comfortable, among the softest we found during our stay. The room was spotless, made up each day while we were out, new towels every day. The combined price for two rooms was similar to what we'd paid in other cities for slightly larger or even smaller single rooms. Our main focus for the stay was 4 days as the Disney's, and we took the hotel shuttle on most of those 4 days, which ran very frequently during the day, and also used the shuttle to go to the train station for other trips. Yes, it's not as close to the parks as others, but the price was better value for a larger area compared to most close. The shuttle was great, and the days we wanted to get there really early or didn't want to wait for the next one later in the day to come back, we took a $24 taxi ride. Buffet breakfast in the Garden Brasserie & Bar had a good selection of Western and local dishes, & food was nice. You'd need to have a decent feed for it to be amazing value (kids may not get $$$ worth), but it was reasonable still and convenient. The dinners in the same location were also good, with great service. We had a la carte & the food was nice. Room service excellent too. One washer/dryer & vending machine on each floor too.

If I was being picky, the only thing that was an inconvenience was having to walk to the next hotel for access to a Lawsons (great by the way), and not being able to secure a vacuum to borrow on the final day to aid in vacuum sealing bags for packing.

The staff were exceptional at all times. We went to DisneySea and Disneyland and the free shuttle bus made this very easy. The hotel was beautiful and very pleasant to stay in and the free bus to Tokyo station was fantastic.

We loved the free transportation shuttles that we were able to take advantage of to get to Tokyo station. They also offered free shuttle to Asakusa and and to Tokyo skytree (I believe) we only took it to Tokyo station. We loved the friendliness of the staff and how they were always ready to help! We loved how big our room was, it was clean and comfortable! They also offered free shuttles to Urayusu Station and to the Disney parks!! Super convenient. Speaking of convenient, there’s also a Lawson in the Comfort Suites hotel which is next door (however, it didn’t seem like it was open 24h, we went around 5am and it was closed) we walked about 7 mins more and were able to go to a different Lawson. We also travelled with our 23 month old and they provided a cute goodie bag filled with slippers, toothbrush and toothpaste! The amenities in the room were also great, loved the pyjamas we used and I also took advantage of their facial products! It was an amazing stay and I recommend everyone to stay here!

Nothing.

I can not thank the property enough for looking after all my group. I stayed here with 16 guests, they went above and beyond to make sure everyone ones rooms were close by, on one level. The property is very clean and the restaurants were good. The only downfall is there are no close by restaurants to walk to so you need to use the shuttle however we stayed here due to the location to Disneyland. My son left his bunnies in the room and the hotel posted them to our final destination, I can not put into words what this meant to him and they charge us very little to action this. Thank you!

I would have liked the roof top bar to be open every night of the week.

Beautiful and well maintained building. The best part was the exceptional staff! They made sure to greet us as we walked in, our luggage was in the room beforehand, provided umbrellas during rainy weather and helped us flag the limo bus so we didn’t miss it. This staff went above and beyond to make my stay wonderful. Also, my daughter rated this room “Best Room Ever”

Not a lot of restaurants nearby but Uber eats helped and they have nice selection of snacks at their lobby shop

The moment you check in to checking out the service from staff is excellent especially the staff who greet you and wave you off outside when you leave absolutely amazing. Staff with their passion and enthusiasm is paramount to having a successful hotel. We enjoyed the Hyatt very much and we will look forward to coming back for sure.

Maybe the noisey ppl who checked in late and were thumping around at night but other than that nothing we experienced by the staff or hotel facilities were bad.

I stayed here the day I traveled into the area to prepare for my 3-day stay at the Disney hotel across the street. The staff was professional and kind from beginning to end. As soon as I exited my taxi, I was greeted and someone helped me bring my 1 luggage inside to the front desk. I arrived after check in time so I went upstairs to freshen up and headed back out to Ikspiari. I had a cab waiting for me downstairs because I was able to call the front desk and they called a cab for me (¥400 fee). After I was done shopping I wanted to check out their rooftop bar. It was a little chilly up there, so they gave me a blanket, and I ordered some hot wine, which was amazing! After hanging out for about 30 minutes, I went back down to my room and ordered room service. The meals are kind of pricey, but the curry that I ordered was so incredibly tasty and worth it! The room itself was beautiful and I loved the modern decor. The coffee maker is a Nespresso machine with available pods to use and the coffee cups are Noritake! Last, but not least, the bed was so soft. I felt like I was sleeping on a cloud. I also loved that I got four pillows to myself😂 All in all, wonderful stay, and would stay again! Check out my short video on my stay here : https://youtube.com/shorts/oFYV8L9-Crw?si=mo7u4c8L2PSZHznR

I really liked the spaciousness of the Grand Hyatt Tokyo Bay. It was perfect for our family, with plenty of room for all 5 of us to stay comfortably!

Room cleaning: While I appreciated that the water bottles and toiletries were replaced, they didn’t clean up the leftover food we had set aside to be cleaned up. It would have been nice if they took care of that as well. Luggage transfer service: I found the staff at the reception not very friendly or clear in explaining the luggage transfer process. They kept saying it could be done later, but when I checked, I realized we needed to prepare the luggage a day in advance. Thankfully, I kept asking for updates, or I might have missed the necessary steps.

Wonderful stay in Tokyo Bay. Staff were very nice. Easy to get to and from Disney via hotel shuttle. Wonderful breakfast (and we have had many hotel breakfasts in Japan). If you are so inclined, highly recommend a club room which gives you lounge access and all the amenities that come with it. Easy to get to and from HND airport via airport bus. You can obtain a bus ticket at HND airport and it drops you off at Hyatt Tokyo Bay. When returning to the airport, the airport bus will pick you up at the hotel and you pay on the bus…you don’t need to prepurchase a ticket…the bus ride back to the airport took about 90 minutes, so plan accordingly. We did take a taxi one day to Disney and it was about 2000 yen. Al

The room was spacious and immaculate, with a comfortable, large bed. The couch was also generously sized. The safety lock on the door into the bath was a thoughtful touch, especially for families with children. The free shuttle service to Disney Resorts and nearby train stations was excellent—frequent, reliable, and punctual.

Clearer information about the free shuttles from the train stations would be helpful. While the hotel provides a detailed guide and timetable onsite, it was difficult to find this information on the website. When we reached out to the hotel beforehand, there was no clear guide, so we ended up taking a taxi from the station before check-in. Once we got the details at the hotel, it was much easier to use the shuttle service. The placement of the extra chair, couch site table, and table could be improved to create more luggage space, as they tended to block the way.