It's a great location for access to places and the house itself had what you needed for a base and was very clean.
In terms of improvements: It felt very contractual with lots of rules and being expected to handover passports and then presented with a contract we were expected to sign was not the warmest of welcomes. Though the dogs were very friendly not everyone likes dogs so this should be included in the description. We didn't like the fact that one of the dogs kept peeing outside the apartment and you could smell it.
We didn't use the A/C but went over the limit and had to pay extra. We were very particular to switch off the electricity when we went out but returned home one night to find a light on. On the penultimate day the landlord carried out an inspection pointing out small marks on the walls which wasn't miss-use but part of wear and tear of having guests.
I get the impression the couple are new to renting out their property and hope in time they learn to relax. We stayed in 3 different places in Sicily this was the most expensive and the least welcoming. The place has a lot to offer but the owner needs to relax having guests around.