We stayed at Marco's house in Ortigia for 3 nights and we can share the following:

Positive sides:
- great location;
- good communication with the host;
- place was well equiped.

Needs improvement:
- cleanliness: the floor wasn't clean, the whole place was kind of dusty and the bathroom has started to develop some mould. There was even a small lizard that we chased away;
- accomodation - this was the fourth apartment that we rented in Sicily. During our time we found that hosts leave complimentary bottle of water (since tap water in Sicily is not suitable for drinking) and coffee capsules. Although the apartment has a coffee machine you will need to source your capsules. Same applies to the water bottle/s.