My family of four stayed at Carlo's for 12 nights and I can't say enough good things. The place is beautiful - luminous, spacious, and tastefully designed with simple, modern furniture (as pictured).
Carlo was easy and lovely to communicate with from start to finish. We have young children (4 and 6) and he was very attentive in making sure we were comfortable and had what we needed. He met us on arrival (near Giardini vaporetto stop) and helped us up to the apartment. When my daughter got sick with a stomach bug he called his pediatrician for us. And he went above and beyond to help us when we decided to extend our stay.
The place is quite comfortable - all the bedrooms had AC - which he even had serviced/cleaned while we were there. It was very hot during our stay so we used AC every night. And there were plenty of linens/towels. We didn't cook much beyond breakfast and a couple simple meals but he had everything we needed if we'd wanted to cook more often.
I loved this place and we hope to come back and stay here again. It's a great layout for a family and Carlo is a warm, professional guy who extended every courtesy to our family.