We didn't meet Simona but Davide, who checked us in, was lovely. Simona replied promptly and helpfully to all our enquiries. The apartment was a little tricky to find initially but is very well situated when you work out the town's geography: it's central and within easy walking distance of restaurants, attractions and stations, and so makes a good base for exploring other places in the region. It's tastefully decorated and I enjoyed being right amongst the Sicilian residents. However, there were a number of issues (which Simona did do her best to sort out) - principally the bathroom smelt of bad drainage all the time we were there which, in such a small apartment with the bathroom right next to the kitchen, was rather unpleasant. And the wifi worked only intermittently (which is frustrating when you're trying to work out travel itineraries). So generally positive and recommended, but with a few caveats.