Vilma's place is perfectly located near a tram stop - up and down the street, and from there it's a quick ride to the city center.
Vilma was not at home when I checked in, but she made it very convenient and easy to get in; once I met her she gave me tips on where to go and I'm glad I did. The food and chocolate were great. I highly recommend Vilma's place and if I ever find myself in Zürich I would book again.