EVERYTHING ! True 5-star hotel ! amazing arcature , ABSOLUTLY perfect location ! STAFF is best and polite , excellent service , full of beautiful people and celebrities' gorgeous lobby . Breakfast is one the best ever ( i have been to more than 100 counties ) Perfectly design logistically and convenience - spa , sauna, steam room , gym and pool . rooftop restaurant is a must. Quality and amenities in the room and thru out hotel ! too much to list.

nothing

Amazing food, comfortable bed, very accommodating staff. They also have sauna, pool and gym - good break from a busy workweek we had in Belgrade

Language barriers with a few of the staff. This is understandable, the problem is how they handled the situation. It was like they ignored or snubbed me and I was standing there not knowing what to do because I was sure they heard me. It took a while for me to realize that they either are not fluent or dont speak English. Note however that most of the staff can speak english. I only happened to have encounter with two who are not quite fluent on my first day - electrician and cleaner. Im sure they didnt mean to make me feel snubbed.

Square Nine is a beautiful hotel in a great location. The staff were all extremely attentive and helpful and just very nice people. Irene at the front desk speaks perfect English and told us everything we needed to know about getting around and what to see, made sure that the places we were going fo see would be open and is just a delightful person. The room was what you would expect. Little chocolates and slippers appear out of thin air.

I can’t think of a thing.

The hotel itself is relatively small, so it’s not that crowded. Spa is very good. Interior is discreet, but well-detailed. Some quite luxury.

Pre-authorization payment was charged as well as check-out payment. So I was charged twice until I contact my bank. You’d better improve the payment process. Btw, the Square restaurant hostess wasn’t friendly, she didn’t allow us to have a seat in the restaurant, saying it’s all reserved, although it was almost empty and had no reservation signs. When we finally got the table and our dinner, we didn’t see anyone coming for 2 hours.

Location great, hospitality is wonderfull, room are big, clean,with all needed facilities, great SPA, delicious breakfast, every person in the hotel staff is very kind and want to assist, when to mention especially Peter at the reception desk. Great value for money

We absolutely loved out stay. Staff was fantastic! We will be back soon! Everyone was super friendly and doing an excellent job. The atmosphere was cozy and clean and detail oriented. We loved it.

We didn't like the fact that you were allowed to smoke indoors. As non-smokers, we found it horrible. But we understood, that this is the case everywhere in Belgrade. A shame, I hope the law changes soon.

Being a Genius Level 3 guy on booking, I have hardly ever left a 10 star review in the last 10+ years of leaving reviews across Europe and beyond. This hotel however truly deserves it and how! There were three of us with three superior king rooms. The location is great and it's truly the city center with access to clubs, nightlife and pubs. The staff is one of the most helpful I have seen. I don't remember the last time concierge offered to take my luggage to my room in Europe. Nothing ever was a problem. When we left the hotel, there were people to hold the doors for us. We truly felt pampered. The rooms were spacious with a lot of natural sunlight. The bathrooms were good size and looked rich and truly 5 star. The amenities were all high end. The spa facilities were amazing with a long swimming pool. I had forgotten to take my swimming googles but was offered one free of charge. They even had sauna and steam rooms. Finally, a special praise is reserved for the guy who served us breakfast (apologies can't remember the name). On the second day he remembered what we had ordered the previous day and even helped us in recommendations for the city. He went over and beyond in being truly helpful. And the breakfast was sumptuous and excellent.

Very minor in the grand scheme of things, the hotel would do well to invest in a bit of upgrade to the common areas and the furnishing of the rooms. Some of it looks aged. But it more than made up for it with everything else really.

The location is fantastic if you really want to get to see and experience some of the history of Belgrade

The hotel interior is beautiful, the rooms are comfortable and the staff is super friendly! Petar the concierge was super helpful!

Nothing, we liked everything!

Very good Breakfast. Spa with good services. Staff very attentive and nice.

Inner swimming pool very cold, not confortable at all; Small room. Hotel not appropriate for small children, should be labelled "adults only". There is no wheelchair/stroller acess at the main entrance.