I'm really glad I picked this place for my three-month stay in vienna. The apartment is really well equiped and the heating is great, which is a good thing in during the cold winter months! I didn't get to meet Dan in person but he was always very reactive whenever I needed something. When there was a problem with the stove, he sent someone very quicly to have it replaced (and now there is a brand new induction cooktop). The only issue might be that the neighbours can be quite loud at times, but only during the day, so I've never had any trouble to sleep. Speaking of, the bedding is comfortable and the beds are reclining, which I really liked. There is no elevator but the stairs are not steep at all so I was never tired climbing them. All in all, I really enjoyed my stay and I was somewhat sad to leave the place. I would definitely recommend it!