My mother and I spent a great week at Francesca's place. The apartment is spotless and has everything you could ask for. My mother especially appreciated the Moka pot as she hates the American-style coffee makers (both are available at Francesca's place).
At check-in, we were greeted by Francesca's lovely parents. Her mother, Emmanuela, gave us a tour of the apartment and explained everything from A to Z. She does not speak English but we made it work with her basic French, my very very limited Italian, and some gesture language.
A basket filled with pasta, coffee, and sweets, was set up in the kitchen when we arrived which saved us from a trip to the grocery store after a long traveling day. There is also a fully-detailed apartment manual with A LOT of restaurant recommendations. We only managed to try the pizza place nearby but we appreciated having the list at hand. The manual also has instructions for the dishwasher and washing machine in case you weren't paying attention during Emmanuela's tour as well as a list of sights to check out.
The apartment's location is perfect. There's a vaporetto stop two minutes away where you can take the line that goes through the Grand Canal, the train station is 10-15 minutes walk away, the Rialto bridge is 15-minutes walk away, and San Marco is 20-minutes walk away. We loved being able to go back to the apartment to relax while it rained and then go out again in the evening.
Communication with Francesca was also perfect. She responded to all messages in a timely fashion and answered all my dumb questions about garbage sorting :-) (Fair warning to those coming to Venice, their trash sorting is kinda intense, plastic and paper/cardboard does not go together).
All in all, this is a great place to stay and I would definitely stay there again.