Like all the previous reviewers have said, this is a sparkling clean, modern, pretty, and convenient place (only a few steps from Piazza San Marco). It is really more of a self-checkin, self-everything, professionally-run hotel, than a traditional AirBnb.
For those guests seeking comfort and convenience (my guess is that covers 99%+ of the tourists coming to Venezia), this is without question an excellent lodging choice.
For those who may be seeking something a bit more colorful and local, with at least some interaction with the hosts beyond checkin and checkout email instructions, this one may still be an adequate choice, but my guess is there must be other more interesting Airbnb choices in Venezia.