Diana's place is a gem in Vienna - super easy to get to (on a tram stop), get into, and very comfortable and clean inside. There are two completely separate private rooms, and then a sleeper couch in the lounge (wasn't totally clear from the photos if the one room was open-plan or not). Overall, highly recommended! Just to note, some previous reviews suggested noise from the trams, but I suspect this was only during really hot days when windows needed to be open... With the windows closed for warmth, I was not disturbed by the trams at all.