I stayed Josty-Brauerei's place with two other friends, we loved our time here. The apartment was located in very convenient and nice neighborhood, walking distance to Rosenthaler Platz station. The building is stunning, nested behind the large gate. There is a restaurant on the ground floor, but noise was not an issue as we were out until after midnight.
The apartment was clean and specious, perfect for three of us: one large living room + kitchen, one bedroom and a bathroom with tub. We loved the large windows and skylights. There was no elevators in the building to the apartment, so there's a bit of stairs to go up with huge luggages.
Wifi was a bit slow and we had a difficult time connecting, but other than that, we had a very pleasant stay.
I'd definitely come back again!