We had a nice stay at Ben & Simon's apartment, which was clean and spacious. The street is one of the most charming in Berlin, you will literally be close to everything but still experience the local charm of the area. The layout of the apartment was a bit surprising, we wouldn't recommend it for more than two people as the bedroom is very far (seperate by a hallway) from the livingroom, and the livingroom doesn't really feel like a livingroom. The kitchen is very minimal, but quite functional. As it's serviced apartments you will find this similar to a hotel, and the decoration corresponds as such. Minor issues such as shower not working great and could use a proper clean, but overall a fine stay for a few days, and great communication from the hosts.