Alex is a respectful and kind person. His apartment is indeed very small, but he tries to accommodate your needs as much as possible (he sleeps on the floor in the room, stays quiet as you sleep, etc). The apartment is also very clean, with an extremely comfortable bed!!! The location is not too far from the Zurich HB station, and there are many small Italian restaurants nearby.
The only reason I give Alex a good not great rating is because of communication and check-in. I booked Alex's apartment for a place to shower and take a nap in between two bus trips. Before booking the apartment, I asked if it would be okay to check in around 3pm. Alex said yes he is flexible, so I booked it. When I arrived, Alex told me that something came up at work and he could not check me in until 6pm. I completely understand that this happens, but it was a bit of a problem for me since I was leaving at 2am anyway and needed that time to be napping.
Overall, Alex's apartment is a great value if you need a place to stopover between trains or buses. He will talk to you and make you feel very welcomed in Zurich. Thanks, Alex.