Although it might seem out of the way when you get to Vienna, it was extremely easy to get around via public transport. There's the tram and train and bus all within easy walking. Walk 1 minute, grab the tram and you'll be at the university and edge of the inner city within 15-20 minutes. Grab the bus and it drops you right off at schoenbrunn etc. There's a great grocery store super near by too. Peter is a great host with fast responses and helpful information (such as having a homemade guide book with all the info you need). Quiet and very clean and stocked flat in an upscale area near the Vienna woods and famed heurigers. We we fortunate to find this place with such a nice host.