Heater only works from 5 pm to 11 pm due to building heating system. Even when the heater is on, it does not heat the room enough because the heater is too small.
The water heater in the bathroom was broken. We had to take a shower with cold water.
There is city tax that charges 3.5 euro per person and per night. This should be explained in the description and fee calculation. In my case, I was charged 52.5 euro without prior notice.