We had a great time staying at Jeanette's apartment (for five nights), it was comfortable (with huge bed and large sofa!), spotlessly clean, spacious rooms, good location (pretty easy to get all over Berlin from here) and it was very calm and quiet, surprising considering its in a fairly busy part of the city (it helps that the apartment looks on to a courtyard rather than straight on to the main road). We would certainly consider staying here again if we came back to Berlin.