We stayed as a family of 6 in this apartment for 4 nights at the beginning of July 2014. It's a great place, with plenty of space and spotlessly clean. The owners were very friendly and helpful on arrival. The location is superb, being 2 minutes walk from Kreuzplatz tram stop, which is about 10-15 mins away from Zurich main railway station. It takes about 10 minutes to walk to the Lake and about 20 minutes to the Old Town.
There is free wifi with the apartment and access to a washing machine. The only niggle if staying with a large group is that there is only one toilet, which is in the same room as the shower/bath. Also, be aware that there are some stairs to walk up with your luggage.
Zurich is a wonderful city to explore and so easy to get around. This apartment is the perfect base to explore the city from. more