The room and the apartment have a super typical Berliner bohemian flair. I loved it. Everything is clean, organized and available. I especially enjoyed the communication with Eric. It felt like he's that friend living in Berlin. The conversations were very familiar, friendly and candid. Like when he explains the small "personality" his heating system tends to express; once you know about it, it's all good.
I would definitely recommend staying here if you want to roam around Kreuzberg, Friedrichshain or Mitte. This will be my next Berlin stay next time.
There is this one thing which bugged me about the street: you sometimes hear some loud obnoxious people shooting as they walk the street; the room is on the ground floor. If you're ok with that, the place is more than perfect.
Thanks Eric