Pias apartment is exactly as described and shown in the photos. Easy to reach and find, and really nice and quiet. The bathroom may be a bit different from what you are used too, since it is kind of open from the top to the rest of the apartment, and every sound you make is very loud and clear to everyone staying with you. But it's not bad, just different.
The bed was reallt comfortable, but the pillows were too big and poofy for us. I ended up sleeping with a pillow from the sofa, just wrapped up in a towel. But I'm used to this, since big soft pillows tend to be popular in europe.
I would gladly recommend this place for a nice stay in Vienna, and would have no problem in staying there again!