We stayed at Hilton Union Square. It was very nice and clean. Rooms were very nice and we were surprised we even had a refrigerator which was an added bonus. Beds were very comfortable. Concierge was always very helpful with the many questions we always had for them. Hotel also kept our luggage the day we checked out all day... More 

We used the Hilton Union Square as a base when in San Fran and made the right choice. The hotel was everything you would expect from a hotel, comfort and class. Being in Union Square wasn't too busy but within easy reach of the other areas of San Fran. Rooms were comfortable and clean. We had one problem with the... More 

The hotel itself is OK. Nothing to write home about, but decent. However, they have very bad "apathic" service. We came in after a 24 hours flight at 7am. They said no rooms were available. OK, we understand... suggested we come back at 8. then at 9. In the meanwhile, DOZENS of people have checked out. Nobody cares to try... More 

This hotel is located in downtown @ Union Square district and very near Union Bart too. It's also near the Powell-Mason & Powell-Hyde Cable Car as well as information center. Hotel food and drink on the high side but can get variety nearby the area.

Every thing went smooth and hotel was nice and hygienic. Staff was great. Conference rooms are good. If a bottle of water can be provided in the hotel, that would be helpful right when you check-in and in the room.

We were offered 70 usd upgrade to have better view, WiFi, continental breakfast. 33th floor did offer better view but ... ...WiFi was slow and should be free in such a hotel ...breakfast was a true disappointment (see picture ) ...room was noisy because of neighbors (the studio had a door to another studio with guests) and because of Metro... More 

Room -clean and modern with all the facilities you would expect however our only disappointment was view of a brick wall from the window. However we were out exploring all day and in the evening so no major issue Restaurants / Take Outs within easy walking distance, the hop on / off tourist bus picks up from here, the train... More 

Nice hotel in the Union Square district close to transport and restaurants. Hotel has security which I thought was important in this area. Nice lobby bar although drinks were on the expensively side. Cafe in the lobby which again was expensive but there is a nice supermarket around the corner where you can purchase prepared fruit and salads etc. Rooms... More 

Expensive for a small room, no good restaurant available to eat , crowded , the balcony so noisy, we couldn't even set in it . I have stayed many times in Hiton hotels around the country and definitely this is the worst experience I had .