I booked a 3 night stay, but left after one night. The room i got was facing the street, there is a lot of traffic and a tram line going every few minutes, also at night. The problem was, that the balcony door in my room, didn't close tightly shut, it needed to be adjusted, so I could hear everything from the street. I went to the reception in the evening and asked, if I could get another room, maybe the following day, but she said everything was booked, but I could ask the next day. The next morning, after very litlle sleep, I went to the reception again and explained my problem. The guy didn't seem that interested in helping, he just looked at the screen and said everything was booked. I asked if they could maybe fix the door then, but that was not an option. So I decided to leave and booked another hotel. He didn't offer me any refund or compensation, just said he was sorry. Sorry is nice, but dosent help my sleep ;)