I booked a window room, but when I checked in, the hotel told me no window rooms were available and gave me a box room without a window instead. The room was very uncomfortable, and I struggled to sleep there. I often had to go out and stay out until I was completely exhausted, just so I could come back and fall asleep straight away.
This was very disappointing because it was not the room I had reserved, and I was not informed in advance. The stay did not meet my expectations at all.