Very well located. Right next to St-Marco square. Close to all the main attractions. Couldn't have asked for a better location. Very easy to go to from the Vaporetto stop. Very clean and the host was very helpful. The only think I would I have wish for, is a place to leave our luggage for the day after check out. The host was very helpful providing us with different addresses where we can leave our luggage, but it is not easy to go around Venice with your suit case and 8 Euros per suitcase (30 Euros for my family) it is something to consider in your travel budget.
Over all, I would recommend 100%