Giovanni is a superhost for a reason. Checking in and out was made incredibly easy and his knowledge of Venice and local tips are invaluable for anyone unfamiliar with the city. From sights to see, traps to avoid, places to eat and how to manage the vaporetto timetables (there's a live app), he knows it all!
The flat itself could not be better located for the main sights (only a few minutes from both Rialto Bridge and St Marks Square), great food places, vaporetto stops and a supermarket. The security of the place is exceptional and the inside is well-equipped, very clean and stylish.
If you're staying in Venice, stay here.