We had a great stay at this apartment in Berlin.
These were the pros for us:
It was very centrally located in Berlin & close to family we were visiting.
It was clean and quiet.
It was close to a grocery store & pharmacy (since we stayed 13 days, this was really great!
It was also cute and had great charm.
It had a washing machine (no dryer, we just laid our clothes out & they were dry the next day).
The WiFi worked well.
Maria was very responsive & helpful when we had any questions or concerns.
Notes:
The stairs worked fine for us as my teenage boys stayed in the loft room. As noted by others, they would have been a concern for me if we had small children.
The code on the front door took us a while to get the hang of.
We would stay here again and would also recommend it to others!