I stayed here with my wife and my two kids, aged 3.5 and 1.5. the apartment is located one block from a lovely playground and three blocks from a huge park and a larger playground. There are restaurants, cafes, grocery stores and pharmacies and even a museum within a two block radius. So it's easy to get around and keep the kids happy.
Our hosts were fantastic and we really enjoyed the apartment. I'd recommend this apartment to any family staying in Vienna. It's a great value too!