It is the best place to stay your trip in Berlin
The bed was so comfortable and there are towels, shampoo, body wash, washing machine (all the stuffs for washing clothes also), microwave, hairdryer and etc. Actually it is impossible to find that there isn't something. The room has literally everthing for staying in Berlin.
The location was so perfect to go to all the sightseeing cause the station nearby has the nice connection to popular places.
Water was fully warmed, the room was totally warm also and there wasn't any single problem to sleep there.
I would rather visit again when I come back to Berlin.