The place is exactly as advertised. Centrally located, with very good access to public transport, within walking distance to anything in Prenzlauerberg and even Mitte, if you care for a bit longer walks. The neighborhood is actually the most "trendy" (for lack of a better word) part of the city, and this apartment is right in the center of it.
I was there on a business trip, and therefore wanted to have access to a normal kitchen and a bathroom, as opposed to staying in a hotelroom, and got all I needed. The room is big, spacious and clean. Communication is easy.
All in all - a good stay, I'd rent the same apartment again.