The flat was perfectly situated. Close to many restaurants, bars and a vaporetto stop that serves the whole city. As for the flat itself, it is very functional. The only drawback, if there is one, is the comfort of the sofa bed but this is normal for a sofa bed.
Francesco is also very responsive to messages and resolves any problems quickly. He was also very accommodating regarding arrival and departure times.
Beware of mosquitoes, but this is inherent to Venice :)