Caroline and Martin's apartment is just great, really cosy and confortable... and very well located - 3 minutes walking from Belvedere and 10 minutes away from the city center. I stood in Vienne with my family (my wife and our 2 kids) for 4 days and we really felt at home. much better than staying in an hotel. Martin was really helpful and gave us a extensive list of tips to enjoy Vienna at 100%. Unfortunately we could not meet Caroline since she was away for Xmas, but Martin was a great host. We loved Vienna and the Xmas spirit that is in every corner of the city. We really recommend staying in Caroline and Martin's place if you come to Vienna with kids. 100% satisfaction guaranteed.