We spent 5 days in the Kaiser Apt, our room was nice with two windows facing a nice small yard. The house has a small kitchenette and a dining table. The bathroom is ok and in general the room was clean. The position is just 5 mins of tram from the ring and 10 from the rathausen, but if you want there is also the subway within a 5 mins walk. In general a nice choice to stay in Wien. Ok for position and cleaning, could be a little more finished.