I had a wonderful stay at Ivo & Ramona's place and loved every bit of it. Together with their almost 9 year old son, they live in a very pretty "Dachgeschosswohnung" in the nice and happening part of Friedrichshain. The room itself is spacious, the apartment has everything you need (and more) and Ramona, Ivo & Noah are soooo nice! They are great and relaxed hosts! Regarding public transport: the tram M13 is very close to their house but you can also easily walk to S+U Warschauer Strasse. I will definitely come back!