We stayed in caterinas house for 11 days in April, the house was as described very beautiful and clean!
The communication during our stay was a little bit difficult, Pepe who welcomed us was very nice and showed us a groceries store, but hardly understood English. As we can't speak Italian, this was quite difficult but we managed it ;) as we couldn't find bed linen at the house we contacted caterina, but she answered my message as we were back home already.
We liked the house and the garden a lot, but we had a few difficulties with the dogs in the garden next to us ( which we assumed was left by the owner a long time ago) because the dogs were barking all the time.
Over all, we would recommend booking at caterinas, Modica is a cute little town with everything you need, and the house with the garden is fantastic,but we would recommend booking in summer.