A really cool apartment, literally next to the Goerlitzer Park. It's nicely connected to the center of the city with a bus that leaves every couple of minutes.
It's real close to all the cool Kreuzberg places. It's spacious and warm. Has lots of windows in all rooms (even in the bathroom) and a nice balcony (which I didn't use as it was cold outside).
The kitchen is fully equipped with everything you'd need and there's even a washing machine if you're staying a bit longer.