This apartment is perfect for exploring Vienna. I travelled with my girlfriend and two other couples and the space was perfect, lots of room, comfortable and warm (especially when outside was so cold!!).
The apartment is walking distance from pretty much everything, the amazing Naschmarkt is a 2 minute walk and there are lots of nice bars/restaurants all around.
The hosts are brilliant, very responsive with useful recommendations that came goos every time!
All in all - a perfect place to see what Vienna has to offer.