Marce's and her place are lovely. We stayed for 3 nights while I was in Vienna for a conference. Marce's place was right between where I had to be and the city centre, so my husband could go check out the city while I went to work. The subway 'U' is an easy 4-5min walk from the flat. If you are into walking or running the flat is super accessible to a large green space and Danube Island which has tons of running opportunities. Running outside not your thing? There is an amazing gym with weight, bikes, treadmills, a rower, and sauna on the main floor. Marce was always quick to respond and very accommodating. We absolutely stay again.