Stayed here in October for a conference. Lucas and Claudia's place is definitely one to recommend; I was met with a genuine and friendly welcome to their family home which set the tone for the rest of the stay. They were very flexible with my check-in/check-out times and made the place feel like my own. If you do stay, I'd suggest following the framed map of the local area for the best places to eat and drink! Since getting around in Berlin is rarely an issue with the U/S Bahn and tram network, this place is really handy being close to both those things. Thanks for your hospitality both!