Sunny Apartement is great, a small, quiet and clean flat for two persons. The location is fantastic (Subway is 50 m from the apartement), the area is not in the citycenter but near to Westbahnhof, and the centre is 15 minutes by subways. The host is flexible, accurate and friendly. I recommend the apartement everybody who wants to spend a few days in Vienna. The apartement great base to the sightseeing. We"ll come back in spring:-)