The overall stay was very uncomfortable.
Upon check-in, I was directed to room 408, a room on the top floor. I noticed immediately that there was a constant strong low-pitched buzzing/vibrating noise that even made the window glass rattle and vibrate. I could not make out what was causing this vibration. I asked a hotel staff member to listen to it, but had to spend almost 20 minutes convincing him to get another room.
I was then put in a smaller room B08 in the basement, which unlike room 408 had no fridge, no safe and a smaller TV. So it was basically a downgrade.
I spent the first night in this room, which by the way was not quiet either. Again, there were constant rumbling noises from the floor above and noises from outside, as the windows in this hotel seem to be in poor condition and are not soundproof. This also applies to the room doors. The building is generally very noisy and not soundproofed.
I asked for another room after the first night and was put in room 008. This again had a fridge and safe.
Unfortunately, it was not quiet either, for the reasons described above. Directly (1 metre) in front of the dirty desolate window was the opposite, even dirtier wall, as well as a loud ventilation system that started making loud blowing noises in the early hours of the morning.
Overall, I felt that my need for rest was not taken seriously. It was not a relaxing stay.