We spent a whole month at Herbert's place and were pleased with everything. The apartment is very well equipped (everything you could need even for a longer stay) and very clean. It's on the third floor, but there is an elevator. There are several supermarkets and a market near the building. The public transport is also very good - there are U4 (Friedensbrücke) and U6 (Jägerstrasse) stations and trams nearby. There is a great park nearby - Augarten. Our communication with Herbert was perfect - on the check-in and during the whole stay. We would definitely recommend the place.