I stayed here with my adult son from Monday-Friday.
The apartment comprises two bedrooms, a bathroom and kitchen. It was spotlessly clean. The first bedroom contains a double bed, the second bedroom a double and single bed together with the tv. The shower was excellent. I would have liked a sofa to relax on though.
The location is in a great neighbourhood with plenty of bars, shops and restaurants within a short walk. We tried the Russian restaurant Datscha Friedrichshain and enjoyed it immensely.
We bought an all day public transport pass for 7€. The nearest underground is U Samariterstr which is about an 8 minute walk (800m). However the 240 bus passes right down Boxhanger Str and is a short ride to one of the main stations, Ostbanhof
A single journey ticket for 3.40€ will get you through zones A-B-C to the airport using the 240 bus and the train from Ostbanhof.
We visited most of the main attractions. If You are staying midweek I can recommend “Street Food Thursday” situated in the indoor market at Markthalle Neun, in Friedrichshain-Kreuzberg- full of great food and drink with a lively vibe.
Bert was a good host, quick to reply and provided useful information.