My husband and I stayed at Dan's place for three nights and very much rate it! It was clean, the bed was comfortable, the bathroom area was very modern and it was spacious for the two of us. Location-wise, it is very central and a short walk to all the sights including Stephensplatz, the Ringstrasse, Prater Park & Stradtpark. Dan was also very helpful and lovely to deal with. I would highly recommend staying at this place for anyone visiting Vienna!