I liked so much the apartment. I thing is very adecuate to couples that search a confortable one. We didn't meet Florian there but all the steps to get into the apartment were enought.
The apartment is warm on winter, especially late hours which is great, and is provided of a full kitchen. (Although I would like to have had some salt and oil) Bath is so big, as the bed..I definitely had my space sharing it with my friend.
Florian answers so quickly and gently and I'm sure he is greatfully of helping you with any doubt.
Finally, the apartment is well connected, 5 minutes to subway (u1) and 10 minutes to central station (Wien Hauptbahnhof where bus to airport is available) it has many stores to buy food and gifts as well.
I totally recommend it!