The apartment is clean, cozy and well-equipped. We were with two small children and found everything we needed: high chair, baby bed, changing table and even a pack of diapers :)
The location is great. We went by foot to all center places like museums quartier, StStefan cathedral etc. There are many tasty restaurants nearby, that are not overpriced, comparing to the center.
Thank you for our great stay, Stefan!
PS for travellers: you should ask Stefan to order you a taxi from the airport, the driver is a very intelligent man who can tell you a lot of interesting things about Vienna history.