Roland is a wonderful host, we (I was there with a couple of friends) felt great all the time! The place (very comfortable and quiet) is just 15 minutes from the city center - warmly suggested especially if you arrive by car (trust me, you'll appreciate free parking in Zürich), but this is the minor thing. The best part of our experience was Roland himself: as I mentioned he's a great host, makes you feel at home the moment you shake hands with him (if not already while you mail him preparing your arrival), and it's always a pleasure to have conversation with him. He is also a good guide for Zürich's architecture and historical places. To sum it all up, we had a wonderful stay at his place.

PS: his breakfasts are exceptional, do not miss them!!