We did not get to meet Jan but we met his lovely colleague amena who was kind enough to prepare the apartment early for us because we arrived at 10am. Jan was an extremely accommodating host! Offering us different options for check in and out as well as leaving us beers in the fridge! The apartment was just what you would want! Lovely and well stocked with all kitchen and bathroom essentials you could possibly need and good wifi! It is a bit of a walk into town (about half an hour which is long in an Austrian winter) but it is fantastic to be coming home to such a warm and comfortable apartment.
We were only in Vienna for two days but would happily come back and stay at Jan's apartment again!