Eliav's apartment was spot on for what we needed. It's comfortable to lounge around and right on Bergmannstrasse surrounded by all the good things Kreuzberg offers. Even though it's in a busy area and large apartment complex, it was very quiet. The windows opened to give a nice breeze for the hot nights too.
Eliav was a really generous host and helped us out whenever we needed it (and we did).
Highly recommended.