Barbara's room was really great. Barbara greeted us very cordially and gave useful travel tips of Vienna.
The studio was very clean, cozy and bright. I think it has the best condition for 2 people to stay. It's in a good location, and I could go to the Ring by bus only in 10 minutes.Getting Westbahnhof is also very easy.
I sincerely recommend to people whom find nice accomodation with reasonable price. I hope to stay here again when I visit Vienna next time. :)