Great location, near a landmark church for ease of reference, and only a short 2-3 min walk from the Giglio jetty. 7-10 mins walk to San Marco square. It's sited next to a canal (overlooking balconies), happens to be near a few Gondola departure points so it's common to see gondolas floating by with the occasional serenade. Note that apartment is located on slightly higher floor (I guess elevated for typical Venice construction?) so there are about 15+ steps to the front door.
Unfortunately amenities are quite dated, seems common for Airbnb rentals with this proximity to San Marco. Mattresses were caved in, bathroom lights went dark within a day of check-in (no windows either) and we could not reach host to resolve them. Floors were deteriorated, some dust and debris.