This apartment was perfect for me. It was spacious and bright, with very high ceilings and comfortable heating. It is ideal for 1-2 people, but doable with more, as there are approximately 5 places to sleep with some moving of furniture. It was very private, except one morning when I forgot to close the bedroom drapes, and woke up to see a woman in the window of another apartment very clearly, so be wary of that (she wasn't looking at me, but very easily could have). Overall, the apartment had almost all the amenities of home. I liked it so much I'd happily live there!
The trip to the U-Bahn was very quick, and I could be downtown in minutes. I bought a 3-day pass that applied to all transportation, so I used the buses and trains to go all over the city. Consequently, I didn't explore much of the nearby businesses, but several of the cafés looked very nice, as well as a seemingly-popular restaurant. Stephanie had left several recommendations on a bulletin board near the front door, which looked very useful.
I highly recommend this Airbnb for your visit to Vienna, and hope it will be as magical as mine was!