Chris' place is relatively close to the centre and in a generally quiet area. His sister greeted us and provided information about the area and gave some nice recommendations. The bed was large and comfortable. A great parking spot by the house was provided and they were kind enough to let us keep our car there for a few hours after check-out.
Unfortunately, there was quite a lot of noise coming in from the street and there are many windows so the room became light very early in the morning. Keep this in mind if you're a light sleeper, because it affected our sleep. We'd recommend bringing your own adaptors (Swiss three-pronged) in case they have not bought a replacement for the adaptors missing during our visit.
Overall, this place is nice enough for the value given that it is in Zurich and fairly central. The host ('s sister) was also very friendly and helpful.