First of all; the room looks exactly as the picture you're shown (it might even be bigger). You've got two big rooms to yourself, little kitchenette and bathroom included. The renter, Oliver, is a really friendly guy who explained everything about the house and even left us some fresh fruits, coffee and tea. The room was squeaky-clean when we arrived. Towels are provided.
The neighbourhood is great. It's not quite within walking distance from Mitte, but we rented bikes and had great fun biking around. A lot of nices cafés and restaurants nearby. Be sure to stay here - you won't regret it.