We'd highly recommend Massimo and this apartment for any Venice trip you are planning. We would definitely come back.
The apartment is in a quiet section of Venice that is removed from most of the tourists but in walking distance from the train station and the busier areas. There's some nice local spots right around the corner too like Al Timon and Il Santo Bevitore. The apartment had everything we needed to make it our home base while we adventured in Venice and was quite large!
Massimo was a fantastic host who accommodated all of our requests like: holding our bags for our early arrival and late check out, taking us on a long boat tour of Venice in the early evening (the BEST way to see Venice), and getting us back to the airport when we were leaving. Massimo was very responsive via Airbnb messages and via phone.