The location of Antionio & Luisa's apartment is perfect. Half a block from the grand canal, and a short walk to great restaurants and a 5-10 minutes walk to the main attractions of San Marco's square. It's just far enough away from the crazy tourist crowds, but close enough to get to everything. The kitchen was well stocked and the apartment was clean and comfortable. The unit has 3 floors, with a bedroom and living room on the 1st floor (ground floor being the street level). The kitchen, 2nd living room and bathroom being on the 2nd floor. A 2nd bedroom on the 3rd floor. We found the layout to be somewhat dis-jointed, but we got used to it. Since we stayed in July, our biggest compliant was the A/C. We didn't realize that the only A/C unit is in the top bedroom (where the single beds are). Given the townhouse is 3 levels, the A/C really only worked to keep the 3rd level bedroom ok. The 1st level bedroom (where the king bed is) was unbearable, and we ended up sleeping on the floor on the top floor. We did re-read the posting after we arrived, which does state that the A/C is in the top floor. So, it's on us for not catching that fact. Also, the stairs up to the terrace are somewhat precarious (steep and slanted), so you have to use caution going up and down.
I would definitely stay here again, outside of the hot summer season.