We stayed at Hannes's place for new year's eve. We were three people and we had a great experience! The flat is exactly as in the pictures. Beds are spacious and comfy. The kitchen is fully equipped and we had no problem at cooking our eve dinner. Everything was clean, bathroom included.
The flat is well located in a nice and young area. We were at walking distance from most of the attractions, but metro and taxis are also available.
Hannes was really kind and helpful. He even suggested us places to go on new year.
We definitely reccomend this place. And we'd love to come back there if we are staying in Wien again!