We stayed at the appartment two nights and it was perfect. It's very well located (2 mins walk from the vaporetto). You can easily walk to the main touristic spots, but the flat is in in a calm neighbourhood , which is really enjoyable at the end of the day. We were earlier than expected, but silvia was there as soon as she got our text message.
The air condition and the wifi work perfectly. There is a good pressure in the shower, which I understand may be an issue in Venice.
Very good welcome by Silvia (Our 11 year old son really enjoyed the cookies).
I would definitely recommend this place for a trip to venice.