Flo’s apartment is lovely, clean and well stocked and she is a very responsive host.
However the area in which the apartment is located is not nice. It is dirty and not very safe, especially at night. The view is of an abandoned park that has been destroyed and there are a lot of junkies living in the area. There are no coffee shops or restaurants in the area, so although the train is very close you have to travel to go everywhere.
I cannot fault the apartment itself but I would choose a different area in Berlin if I were to come again.