We stayed in Daniela's flat for 4 days in September. Daniela wasn't in Cefalu at the time, and we had to get the keys from her friend Adamo, who was very friendly.
The studio is clean, has a nice balcony, and overall is a good place to stay in Cefalu. Free parking by the flat is a great plus. The studio is 2 min walk to the beach, and about 10-15 min walk to the old town.

The only drawback is the sound of the working fridge that bothered us at night (the back side of the fridge is right above the bed's headboard), but it's not as loud if you sleep on the other couch. Everything else was perfect.