The hotel doesn’t have any sort of climate control. The room doesn’t have any sort of ventilation other than the windows. Which, facing the street, let all the noises of the city come in at night. So keep that in mind when booking. Also the hallways/corridors don’t have any ventilation.
The bathroom door had missing towel hooks, and the damage was visible (see attached pictures).
The toilet was leaking but could not be fixed on a Sunday when we found out. We were not offered another room. Luckily the door to the bathroom was well insulated and we couldn’t hear the noise all night. Also the faucet of the in-room kitchenette sink was leaking, luckily there was a sponge that could be used to stop the noise of the drops hitting the metal sink like a drum.
The room door closed shut really well and with excellent noise insulation, a rarity these days. We didn’t hear a sound from other guests.
The staff was otherwise excellent, and with the Lufthansa strike and having to leave a day early they refunded us the unused night without any reservation.
The place is located next to the subway and a 10 min walk from the main station.
Based on the above though, I would think twice before booking it during any warm month and if sleeping warm. I cannot imagine how hot it the room can be in summer with no way to cool it down.