A great hotel for our long-weekend break in Berlin. The hotel is within walking distance of many key sites, or the metro is just across the road.
Hotel was very nice, lovely snack and bar area (no food served in the evening), but the breakfast (at 22 euros per day) seemed very expensive by comparison to what you could get from a local bakery or café, so we passed on this.
A small gym is available and the surround neighbourhood felt very safe if you were considering a local run in the city.
Our only niggly issues were that our room was booked for three people and all amenities were set up and provided for two (chairs, mugs etc.) and we had an issue on one day with our room not being serviced, but the reception team sorted this issue.
We would recommend for a stay in Berlin :)