Massimo was a very welcoming host. He offered to pick us up at the vaporetto station, which was very helpful for us, as streets in Venice are a bit tricky to find. As we arrived in the evening, he bought us some milk and coffee to make sure we would have a decent breakfast ! One warning : there is no elevator, and the apartment is nearly on the top floor ( I didn't count exactly : the 3rd or 4th floor).
The apartment is very functional, bright, clean and quiet. Apparently, there's a music school on the other side of the wall, as we heard piano practices one morning. But not too early, and it was rather pleasant to hear. One thing though : the bathroom is very narrow, and you must navigate your way around the basin, toilet and shower. Not a big problem I should think, and the bedrooms are big and well furnished, particularly the double bedroom : the bed is large (180 cm) and has a very good mattress.
The neighborhood is lovely, a typical Venitian area where you can see people going to work if you wake up early (my husband did). It is 5 minutes away from the Rialto, so very central too.
All in all, a good address and a very reliable host.