Anna's apartment was definitely one of the best Airbnb experiences that I had. Unfortunately I only got to meet her very briefly as I was leaving, but she was very helpful despite not being around. She gave an (extensive!) list of ideas for things to do in Zürich, and even stocked the entire fridge with food for me for the week. The apartment itself is beautiful, and very conveniently located 10 minutes from the University and right beside the bus stop to the city centre, and in a great part of town. I'd have no hesitation in recommending this place to a friend.