We loved our stay at Concetta's place in Cefalu and would definitely recommend staying here.
Concetta met us at the apartment and showed us around, she was so lovely and willing to help with anything we needed.
The apartment is up some very steep stairs but this didn't bother us as the view from the terrace was stunning and well worth it. It wouldn't suit less mobile travellers. The apartment felt very homely and we enjoyed drinks on the roof terrace overlooking the beach each evening. It's also located very close to the beach and restaurants.
If you are staying in Cefalu then I recommend Concetta's apartment. We were sad to leave and hope to be back soon.