Nice place in a mixed residential/commercial area (which kind of describes most of Berlin). Only a few minutes walk from the nearest metro station (which is served by 2 or 3 lines).

Loretta was hospitable, gave me an introduction to the place when I arrived. The room is very open and airy, in addition to the bed there is a table and chair that is very good for using a laptop. WiFi seemed to be high speed. Reasonably quiet.

Many places to eat nearby, many small shops for shopping nearby.

I'd say the only potential downside for some people is that you need to walk up 4 or 5 flights of stairs to get to the apartment.