My son and I stayed in Andreas apartment for five nights. Check-in was very easy, as we were met at the apartment by Andreas' associate Evi with the keys and instructions on how to use the appliances.
In Vienna, location is very important. The apartment is a short walk from where the airport bus drops off at Morzinplatz.
Markets are very close...I'm a big fan of the Merkur market less than two minutes away.
The apartment is very clean with plenty of hot water and great water pressure.
The bed is very comfortable, and the bedroom is quiet for a good sleep.
I have stayed in other apartments in Vienna, and I have to say that this was my favorite.