Bright flat on the 3rd floor in a quite street in Friedrichshain-Kreuzberg.
There are many cafés, shops, markets and clubs within walking distance (~ 15 mins).
If you rent a bike, you can easily go to Alexanderplatz, Neukölln and Bergmannstraße (just to mention a few).
The flat is a 10-minutes walk from Warschauer Straße (U1 line) and Ostkreuz (Ringbahn and many other S-Bahn lines). There's even a bus that takes you to those 2 stations and stops right in front of the building (n.347).