I stayed in apartment 2 C.
What I liked : The location is very good. Everything you need is just a short walk away.
The walls are thin but overall it was quiet except for my neighbour practicing his guitar playing at midnight. After I banged at the wall twice he refrained from playing late at night.
There is a free washing machine and a clothes line at the open air roof top.
The big window taking up the whole back side of the flat.
The caretakers.
What I didn't like:
The advertisement says check in from 12:00 onwards but after I had reserved I got the message that check in is just from 3 p.m. onwards.
The sagging old fashioned spring mattress.
The noisy AC from the flat below.
WIFI was a bit tricky.
The battery of the safety box was low and I got it changed but then it wasn't any longer possible to program any other code besides 1234. The caretaker didn't manage neither.
Very noisy birds infront of the flat that go off at 5 a.m. !!
No answer to my question regarding an issue.