I stayed at this location with my partner for 3 nights. The place is 1 metro station close to karlsplatz. It is very cozy, clean and just as in the pictures. The apartment has everything you need: a fully equipped small kitchen, a big bathroom, a hair dryer, towels, a washing machine and plenty of heat in the winter time. By the way, I even saw an umbrella so in case it rains you are covered :). The instructions for checkin and checkout are extremely accurate and we could also take advantage of the storage room which was really convenient.
Thanks for a very nice stay!