Silvia is the best host you could imagine: she is super thoughtful, prepares an amazing breakfast and is always available to help out or answer any questions you might have. The house is amazing: it is beautifully decorated and furnished, super clean and has all the amenities you might require. I stayed there for 1 month and I would definitely recommend it for long-term stays. There is a lot of storage space and even a beautiful desk in the room, a great kitchen if you like cooking, nice outdoor space to enjoy over the weekends and great laundry facilities. The location is also excellent: it is the right balance between good access to the city-centre (direct transfer with the 31 bus), whilst having some nice peace and quiet!
I would 110% recommend staying at Silvia’s whilst in Zürich, it will make your experience unforgettable!