Perfect for a weekend break. The hotel was very close to where we wanted to go in Berlin, including the river, the Reichstag, Tiergarten etc. Most places we walked.
There was a bit of noise, we were there at the weekend, e.g. one of the guests were playing music loudly in their room, but only audible in the corridor.
Bathroom was good, the only complaint being the shower temperature would constantly change - first world problems.
One thing to note - we booked on Expedia, and there was a EUR 11 city tax to pay at the end. Small amount but worth remembering so you're not surprised.