I moved to Vienna for work and I booked the the Jewel for six weeks. The apartment is very well maintained, possibly better than the pics and very clean, optimally located within city center, shopping area and the food store is right next door. Public transportations are just cross the street (bus) and U-Bahn is 5 mins walk.
I'd recommend the place not only for the quality and the value but also for the kindness of the owner. Thanks James again for make me feel like at home!