Jonas was very welcoming and accommodating to the 3 of us who stayed in his apartment for 4 days. He was on vacation and left the keys with his roommate, who was very friendly and was not at all intrusive. The flat is very cozy and has everything we needed for our stay (incl. cooking equipment, a washing machine, and a nice shower). Jonas's room is clean, modern, and very nice.

One of the best parts of this flat is that it's directly in front of the 43 tram and the U6 Alser Strasse metro stop; so convenient for getting to/from the city (especially after a long day). Of course, the downside is that it's rather noisy because of all of the traffic going on (and we had to keep the windows open because we visited during hot days). If you don't have trouble sleeping (like us), then it's no problem, but if you do, maybe consider buying earplugs :)

In any case, staying at Jonas's apartment was everything we needed and very comfortable. We're thankful to Jonas for letting us stay with him and we would highly recommend it :)