It is the best Airbnb!
The hosts are very charismatic and friendly. José answers all your messages and gives you the best tips. He speaks perfectly English, Spanish and German. Very good location; close to East Side Gallery (The berlin wall and the mall next to it), two train stations: Treptow park & Otskreus (from here you go wherever you want), bus stop and supermarket: Neto (it's cheaper) & Edeka (they serve you better according to me wife).
The apartment is new and is located in a very quiet area, which still has its charms (such as the kneipe 'bar' 3 blocks away). The windows are soundproof, trough which you could appreciate the street but without having its noices (ambulances sirens in Germany can be a little bit too noisy) . It is also a very well equipped apartment even for long stays, so you probably won't miss anything (tv, bathtub, 2 frying pans, many pots, coffee maker, oaster, a bread grill, etc). The view of the canal from the roof terrace, especially during sunset, is enchanting. Highly recommended.