Daniela's place is lovely, clean and spacious. It was perfect for our 4-day-stay as a a family as it has two seperate bedrooms (and a nice couch to hang out) to have some privacy after a long walk across town. The flat is very well furnished, especially the kitchen: If you like to prepare a meal, you will not miss any utensil to do so.
The flat is very close to the Arsenale, if the Biennale is what you are going for. Nevertheless, it is quiet and not very touristy. Giardini is equally close as is the boardwalk, on which you reach Piazza San Marco in about 10 minutes.
Communication with Daniela was very friendly and positive, and even during our stay she stayed available for help or questions.
Highly recommendable!