You can't do better that this place for a trip to Zurich! The location is so convenient -- right next to the train station and a short walk to everything in downtown Zurich! The street itself is quiet, and there are a number of cute shops and restaurants right nearby, as well as the museum and park!
The place was very large and neat. The balcony was super nice, the shower was great, and the bed was so comfortable and definitely large enough to share for two people! Just be prepared -- if you are there during the day, you will have to close the blinds, as it is very easy to see inside the apartment.
Christine was very friendly and accommodating when we needed to stay and extra day, as well!