The apartment is very clean and communication with the agency is quick, efficient and fluent (in English as well). Everything is provided for: hair dryer, toilet paper, towels, kitchen is well equiped,...
It is definitely possible to walk to the apartment from the Santa Lucia station if you don't have too many bags; water bus or water taxi are not per se necessary. We found the apartment quite dark and there is some noise from early on from the boats, but both things are probably just how houses and city life are in Venice, and not necessarily a downside from this apartment. Keep in mind that you cannot leave any garbage in the apartment or the owner will fine you with 50 euros. In the apartment is an info map on how to dispose everything.
Tip: Conad City supermarket closeby with everything -even a bakery.
Overall: nice apartment that we would recommend!