Most importantly was that Leti and Jo were very gracious and responsive. Communication with them was good. I mistakenly gave them an incorrect arrival time and their responses were very kind and understanding. Despite my failure to communicate the correct time of arrival, they accommodated themselves to our actual arrival time. The apartment was very clean and the bathroom appeared new. The bed was comfortable - something especially important as one get older. All essentials were available. We did love the apartment's location and proximity to other places - the area felt like a neighborhood, seemed quite safe and was quiet; the apartment is near a vaporetto stop, a lovely park, the arsenale, and a number of good cafes; and it was not over-run with tourists. We walked to and ate at several good neighborhood restaurants.
I would certainly recommend this apartment to anyone and would stay there again on our next trip to Venice.