Felix's appartment was very nice! Perfectly located (just a minute to the metro station), supermarkets, cafes and bars in 5-10 minute walk. Calm and peaceful neighborhood, but pretty close to the hot spot of Kreuzberg.
The appartment has everything you might need - there's kitchen with a fridge and a kettle (with coffee and tea for you), bathroom, spacious room with balcony and a nice view. Everything was clean.
Felix himself seems to be a really nice guy, although we didn't have a chance to talk a little longer.
Definitely recommend :)