Great little apartment ideal for 2 but ok for up to 4 with the sofa bed. Clean and next to stop for water bus from airport on orange line. Off the beaten tourist track, so some good value restaurants near by. Check out the Pontini trattoria just before the bridge, long waits with queues but worth it for the food.
Approx half an hour to San Marco by foot, but all main sights are within walking distance. Great base for a short stay in Venice, that won't break the bank