We really enjoyed our stay in Zürich, it's a beautiful city! The Airbnb was really central and it was easy to get around in the city.
Unfortunately the kitchen was really dirty, so we couldn't really use it. Especially the oven was unusable. We booked an Airbnb so we'd be able to cook for ourselves since Switzerland is quite expensive, but we ended up having to eat out most of the time.
The bathroom and our room on the other hand side were clean.
The sofa bed was pretty uncomfortable as already noted in other reviews, but it was bearable for our short stay.
The WiFi was really bad. We lost connection multiple times and it was really slow most of the time.