Just completed a stay here and was quite happy. Overall, a nice property and very attentive, very professional staff.

I wanted to thank everyone who provided transportation suggestions, they helped a ton, and add one myself. The 0 Strassenbahn which runs on Ungarn Strasse right in front of the hotel goes both to Wien Mitte and to Sudbahnhof. I found this very helpful for going to Sudbahnhof to take a trip to Bratislava (which was absolutely incredible, but that's a subject for a different thread) or to get to the CAT train at Wien Mitte when leaving (I had a night flight, so it was great to go, check in, and still be able to enjoy the day in Vienna without luggage). The stop for Wien Mitte is "Landstrasse" on the 0 Strassenbahn (just like it is on the U Bahn).