Fantastic!! Even better than I expected. Our trip to Venice would not be the same if we hadn't stayed in Roberto's place!
The apartment is by a small canal, so our alarm clock was the gondola men singing :) We spent one whole afternoon "just" sitting in the living room, watching the gondolas pass by the window and listening to their songs.
The shower is great, as well as the mattress.
Location is perfect, since you are 2min from a vaporetto station in the Canal Grande. And, although you may reach Piazza San Marco in 5min walking, you are away from the crowds of tourists.
Roberto is very nice, careful and available.
Would highly recommend!!