Great place, with a lot of space, more than enough for the three of us. Pretty well located, with subway, trams and city-bikes close by (if you come by train, think about the Wien Meidling train station, with a direct subway line home!). Angelo was a great host and even allowed us to play his baby grand piano!
There is a big street not too far, which you can hear sometimes at night. For most people that shouldn't be a problem, but if you are a light sleeper you might want to consider that.