We enjoyed very much the apartment as two families with three kids in total. Its terrace is huge and has very nice view over Cefalù. After kids fell a sleep at night, we spent most of our time there. The location is not far from the center and in 20 min walking distance but with kids you may need a car though it takes 5 min. drive.
Communication with Liliana was without any problems (though she speaks Italian and we speak English, all worked fine :) ) and she was very helpful whenever we asked for support.
We can highly recommend this apartment to anyone with or without kids.