Fisrtly I truly want to say that yes, it was nice idea to stay here.
Nice place - good location, close to metro and cheap shops, two balconies - having a breakfast outside watching life and sun on streets are wonderful.
There are strange and weird pictures (but so many bright colours :)!) on the walls on first floor - but I guess this can be specific for this place and this suits.
Enough space in common area - however it would be rather comfortable and cosy if there were couple of chairs (or smth like that) in computer room. Also I think bedsides tables in dorms are also needed - because locker wasn't enogh to store things.
Nice breakfast! :) Free map and big variety of excursions.
And of course thanks to staff: hi from Moscow :) and thaks for advice and your help for discovering Berlin.