We spent one month at Cristian's apartment and would thoroughly recommend it for short and long stays.
The apartment is in a great location for getting to the airport, town centre and elsewhere. There are also bakeries and shops within a minute's walk.
The apartment itself is clean and had everything we needed to get settled for our time there.
Additionally, Cristian was so helpful with everything that we needed and was prompt in answering any queries. I'm convinced that staying elsewhere would have led to a much more stressful and less fun trip to Zurich and we couldn't thank Cristian enough.