Great stay in Berlin!
Ashraf's place was very clean and quiet (incredibly efficient windows), good neighboorhood, in a walking distance from train, subway and bus. The place was quite spacious, filled with natural light (pictures didn't lie) and heating was very good ( temperatures were around zero at night but we weren't cold at all).
Shower had abundant hot water (and although small, bathroom itself was quite spacious).
Kitchen was a separeted area (with door) from room and dining/ sitting area, but didn't have many appliances.
Ashraf was very acessible and answered all my questions in a matter of minutes!
Bottom line: I WOULD DEFINETELY RECCOMEND!!!!