We had a great stay in Marcus´ appartement, it is very nice, well equipped and really close to the Ubahn.
There was a little confusion in the beggining, because we checked just the map, not the exact address, so we were waiting in front of a wrong house, also Marcus was a bit late, but communication with him is fast, so we´ve solved it pretty quickly. I appreciate that Markus answers messages immediately, so we could settle everything during one day - which was exactly we needed, as our trip to Vienna was a last minute.
Marcus was very friendly and helpful and showed us everything we needed. Thanks to it, we had a great stay.