The hotel is located close to Berlin Zoologischer Garten. The directions on the hotel website suggest taking the X9 bus to Zoologischer Garten and then taking the U-Bahn, but its only a 10 minute walk from where you get off the bus, which is quite pleasant (depending on the weather). The hotel is in the commercial centre of town with many facilities close by, including cafes and shops and is down a quiet side street. My room overlooked the main road and there was no obvious street noise. The room was filled with sunshine on waking which was very pleasant.
The hotel is a converted theatre and has a classy mix of traditional and minimal. The reception staff are very helpful. The room I stayed in was smallish but everything worked. There was no kettle or tea making facilities but the hotel provided these on request. The shower was quite powerful. As always in hotels, the TV had been poorly tuned to odd channels, afterall there are times when you just want to relax in the hotel.
The pillows they provided were weird, with zero support.
The only negative was that they wanted to charge €20 pp for breakfast. The city is expensive for food so stock up in supermarkets if you can.
Picked up a lovely vase in perfect condition from the 60's at the Mauerpark fleamarket on Sunday for €3.