A fantastic spot in the center of Berlin.
We've had the pleasure of staying at Roberts place for a weekend - and we absolutely loved it!

The apartment: Luxurious and comfy - you get your own large room, with a nice waterbed, and a great bathroom. Given it has a separate entrance as well, it feels like you have your own place. And everything was nice and clean - and very aesthetically.
The apartment is divided into 3 floors, where you live in the bottom-section, upstairs is the highly modern livingroom and kitchen, and on the roof, a great rooftop deck, with a great view and plenty of room for relaxing - which we did :)

Our host(s): Robert and his two lovely dogs Otto & Jack, greets you, and make you feel welcome, from the moment they meet you on the staircase. Yes, you have to love dogs, cause the dogs will definitely love you. They are very well-behaved and sweet, by the way.
Robert was the the perfect host, very friendly and welcoming - and very helpful with whatever questions we had.

The only bad thing about it is, that you will like it so much, that it will be tough going back home. We are definitely staying here the next time we are going to Berlin. Thumbs up from Denmark - and this place deserves more than 5 stars.