The apartment is extremely nice, well kept, well equipped, and spacious.
Its location is great, so close to the U3 line and the U4 is not too far either (just down Webgasse). The area is nice and has lots of nice shops, restaurants, and cafes nearby, plus straight in front the apartment there is a Billa supermarket with everything you might need.
The building was very quiet and peaceful. walking distance from the apartment there are a wonderful park and an Aquarium - very useful if you have kids!
It's a great place to stay, we enjoyed very much.