We stayed in Branos apartement in summer. And we had a wonderful time. The apartement is clean, lightful, comfortable and quiet (and has aircondition!). We enjoyed our stay very much. The kitchen is fully equiped (no microwave) and even a washing machine (no electric dryer). Besides the comfy living room with TV/netflix, we could also use the terrace in the quiet backyard, which was equiped with plants (automatic watering) and outdoor lounge furniture. Be sure to climb up to the upper terrace - the view over the roofs from Vienna is stunning. We could even use the barbecue, which we didn't do as there are so many great restaurants nearby. Tram, bakery, a Billa-shop, dm and other shops are in short distance. Also the Museum Quarter is in walking distance (10 minutes).
The only thing you might think of is: THERE IS NO KEY TO THE GARAGE in the apartement and so you MUST TAKE THE REMOTE CONTROL upstairs. In our case, we found out this at the end of our stay and nearly couldn't get to our car. We finally - after several mails and phone calls - found a solution, as the Hausverwaltung sent somebody, who opened the door of the garage for us. But the stress would have been avoidable.
Anyhow we can highly recommend this apartement and would love to come back again.