First time AirBB user here. For a longer stay, I really wanted to avoid the hassle of hotel housekeeping and privacy intrusions. A win!
For the apartment? Ulrich's place is completely as advertised. The location is perfect, in a busy area of town, but the apartment itself is located on a quiet street, in the very back of the building.
When I return to Berlin, it may be difficult for me to not select this apartment once again. For the price, it was perfect.