We had a great time. It is definitely something special to sleep on a houseboat! In a positive way! Very cozy and romantic. The rooftop is great at warm summernights but also a thunderstorm makes a cozy atmosphere on houseboat! :) the boat was clean, had everything we needed! Good to know: the karlsbrücke is not that far away! But By foot you will walk 30 minutes - 1 hour to the city center. (it depends on the destination). We had problems with the toilet since check in (although we were very careful) but Gabriela was very engaged! That was very good! I think if everyone is careful there will be no problems!