The apartment in Hildastrasse is very cute, super clean and extremely well located and commuted. There is a lot of light and heating and hot water works perfect.
You will find supermarket around the corner and many restaurants and many other shops. From the apartment to airport is very easy too. Tram number 3 (it is far 2 minutes walking from the apartment) to train station and then take a train to the airport (10 min by train). Ticket price CHF7 both included.
Regarding Claude, just to say that he is so great, kind, always available if you need something or having some doubt, just really really professional and nice.