We had a nice stay. It is located very close to the city centre, which makes it perfect for a city trip. Finding the key was a bit vague in the begin, but after quick and very friendly help of Sebastian it was completely fine. Besides the two-persons bed, one person has to sleep on the couch. No problem for a short-stay though. Wifi was not working that well. We were allowed to leave our luggage behind after check-out time, which made our last day very pleasant.
Overall a very nice place to stay for a city trip!