I think its a great mini appartment, great location, lovely courtyard with the bamboo. I stayed 4 nights in April 2022. Might be too small to stay for longer. Kitchen is a bit limited in size with no oven or microwave.
It was very clean, as described, easy to comminicate with the hosts and entry / exit very easy.
The neighbourhood is cool, artistic and very central. There is a small supermarket opposite and lots of bars and restaurants all around. 10 minute walk to Museum island or Freidrich strasse. Would stay again.