This place is simply great! You can easily reach it from city center by public transport or (if you don´t hurry and don´t have many luggages) take a walk e.g. via Mariahilfer Straße. And it´s surprisingly close to Schönbrunn.
Everything in the apartment was absolutely clean, hosts were supernice and we had everything we needed.
Definitely worth and I am sure we would choose it again for next visit :)