I’d absolutely recommend Nikola’s place. It is a tiny apartment but it has everything you need for a short stay in Zurich, including a comfortable bed, good Wi-Fi, small kitchen and good heating :-)
Communication was excellent on arrival and Nikola was extremely friendly when explaining me how everything works. He lives in the same property, but you get a lot of privacy as the apartment is totally independent.
Location is good, 25-30 minutes walk to the center or less by public transport. The place is located in some kind of private neighborhood with pedestrian streets, lots of nature and tranquillity.
Thanks a lot!