Roberto's place is probably the perfect way to explore Venice. The location is as central as possible. You can walk to every corner of the island from his place. We ran into some difficulties with our flight schedule and notified Roberto on a short notice but he made sure to make everything smooth for us. Lionella literally drew a map on what to see and enjoy in Venice as a local, the pizzerias where locals eat and where to get the best views.
Coming back to technicalities, Roberto's place is well equipped with everything from ACs to washing machines and fridge. Supermarkets are about 5 mins away, water bus stops are a minute away where you can get transport to Murano and so on. We enjoyed our stay with Roberto in Venice and hope to be back there again. :-)