We had a stay at Rob's apartment for 4 nights. The apartment was easy to find and placed in a very nice and quiet backyard. The standard of the place is good. It's very much like, shown on the pictures. Nothing to put a finger on, what you see is what you get!
We met up with Rob, he was very nice and helpful, telling us places to go and to eat in the area. Prenzlauerberg is absolutely a visit worth! We enjoyed Berlin for a few days and we are definitely going back, hopeful staying in this apartment again. The best recommendation!