A very nice apartment in a great location. It's on Rio Novo, 5 minutes walk (1 bridge) from Piazzale Roma, with airport and city buses, parking, a large supermarket, and stops for several Vaporetto (water bus) lines. One more bridge gets you to the train station.
Finding it was easy; Marianna met us in Piazzale Roma, showed us to the apartment, and showed us how things work, including the WiFi.
The apartment is very nice, clean, modern and spacious, with marble floors and good modern windows. The kitchen has a full-sized fridge, gas stove and a clothes washer. It's located close to wherever you want to go with restaurants on the street in front, but still very quiet, being on the 2nd floor with the bedroom on the back, facing a residential courtyard.
Davide provided a collection of information on the local area, including a good map, and 2 of Rick Steves' popular guidebooks.
Checkout was easy, we didn't have to meet anyone, so we could leave for the airport at 06:30 am.