There is very little to fault about our stay at Fuwa's apartment or in Zurich itself.
Fuwa met us at the apartment and showed us in. We were very pleased with the apartment - it was comfortable, clean and very well equipped (an excellent kitchen and utensils, good WiFi, an internet TV, great shower, etc). There was one minor problem, but Fuwa responded very quickly to my communication and it was all sorted out with no fuss whatsoever.
Regarding the location, I highly recommend it for a stay in Zurich. The apartment is one short tram ride from the airport, and another short tram ride to the city centre (the Swiss public transport is excellent). Right outside the apartment is a supermarket, a pharmacy, a post office, and a bar. For our purposes, a short tourist's visit to the city, we found it ideal.
Overall, we were exceptionally happy with our visit to Zurich, and this is in no small part to Fuwa's hospitality and the lovely apartment. Should we visit again, we would not hesitate to stay here a second time.
Thank you, Fuwa!