We really recommend to visit Berlin staying at Frank’s place. Besides the originality of the decoration, the bed is very confortable, and all the rooms super clean. The bathroom is cleaned everyday, so sharing it is not a problem at all.
The neighborhood is great and full of good restaurants and bars, just need to walk 15mn maximum to find everything. The metro station is 3 mn from Frank’s house.
We certainly will repeat the experience for our next stay in Berlin!