We stayed in Nicole & Dirk's apartment for 1 week and we had a fantastic time. They were great hosts....very accommodating.
The apartment was extremely clean and tidy with all of the amenities that we needed.
It was conveniently located near shops and restaurants as well as U-bahn and S-bahn stations which meant that we could travel anywhere in Berlin with ease.
We will definitely stay at Nicole and Dirk's place on our next Berlin trip.