Boris and Andreas did a great job in connecting me and getting me set up for my stay, the apartment is nice and clean, has everything you need for a long stay in Wien and the apartment complex is safe. The only two negative points were: 1) the construction in front of the house which made everything a bit dusty, and 2) the sourrounding streets are not that nice - graffity all over, red-light style shops nearby, etc. I was new to Wien, so I did not know about the difference in the districts. Overall a good experience for the price you pay.