Our stay at Martin's place was perfect. Check in was very straightforward and the apartment was easy to find. Location was good, a nice compromise between being close to the city centre and close to Vienna Central Station, just about a 15 to 20 min walk from either. The apartment is beautiful, VERY spacious with two nice large bedrooms, and big kitchen, dining, and living areas. The beds were super comfortable too! Martin was very responsive and provided many amenities and helpful information. While we were only there for one night, we wish we could have stayed longer as the apartment would be great for a longer trip.