Jonathan is a great host and he keeps his house in perfect conditions, clean, tidy and with a lot of amenities such as washing machine and espresso machine(s). The balcony allows to enjoy breakfast and/or coffee and to take some sun when the wheather is good. Also, the house is right in front of bus 32 with which is very easy to get to the city center (I'd say in 30 mins, Zurich public trasportation is excellent, I never had a delay).
The place is perfect if you work at ETH Honggerberg, which is just 10 minutes away on foot. Even if you don't, Honggerberg and Kaferberg woods are great places to go for a walk, run or to have a BBQ while enjoying breathtaking views of the lake and the alps. Score 10/10