Probably the best and most convenient location + price-wise place to stay in Vienna! I've stayed in many apartments in the city before but this one felt the best. Hermann and Christine were very pleasant, kind any easy to communicate with. Being in such a building and just 2 blocks away from Stephansdom, It's a real immersion into the lifestyle of the locals. I had no problems with the neighbours, they were friendly people who always said hello and smiled when we saw each other in the corridors. I really liked how quiet it is, the wide living room, the TV and the channels, the big bath and the preserved authenticity. It's perfect for big families because of the two bedrooms but also for couples. My dad, my girlfriend and I had a great 11 days there! :)
A definite recommendation!