We stayed 4 nights in July and thoroughly enjoyed the place. Communication and check-in was smooth. You don't mind to get up 3 floors when you open the shutters and enjoy the amazing view in all directions. The location is just steps away from the train station or Piazzale Roma, ideal to take any vaporetto line. Down Rio Marin is a large supermarket, 2 great restaurants, and opposite a wonderful Cafe for breakfast.
You can see and feel that it is not a flat managed by an agency, actually they lived there before. In the cupboards you will find absolutely everything you need for an easy stay (from shampoo to white wine...). Brilliant the double rain shower in the huge bathroom. We used airbnb since years in several european countries, - this was a highlight !