Michael and Agotta were very friendly, and made the check-in / check-out experience super easy. I've never stayed in an Airbnb that was this tidy and orderly on arrival. It was like a Mr. Clean commercial. The flat is decorated in a minimalist style, and is very cool. The bathroom is nice, with a shower that has decent water pressure (very welcome after travelling as much as we'd been!). The kitchen is well-stocked with most anything you'd need to cook a meal if you want to make your own food (eating out in Zurich is a bit pricey).
The location is good, easy to get around Zurich via transit (there's a stop a few minutes' walk away). There are easily a dozen bars and a couple of clubs within walking (stumbling) distance. If you're in Zurich and want nightlife, this is a great place to stay. There's also a pizzeria with patio seating on the ground floor of the building the flat is in. A couple of grocery markets are nearby as well.