The flat was impeccably clean and well laid out, with all the amenities we expected. It’s easily accessible – at least, inasmuch as anywhere in Venice is easy to get to – and we were met at the nearest vaporetto stop so had no difficulty finding it the first time. (Difficulties with the vaporetto ticketing, yes, but that's another story.)
Our only criticism is that it lacked a little warmth. Not in terms of temperature: the heating was very efficient. However, the apartment didn't have much “soul”; guests looking for a homely atmosphere might be disappointed.
Huge terrace, as advertised, but not of much interest to us at the end of December! Inside, though, the rooms are all very spacious, and there’s plenty of space for everyone.
Piazza San Marco is about ten minutes’ walk away (if you don’t wander off track), and there are a couple of small supermarkets within easy reach for those who want to cater for themselves.
Highly recommended.