I'm an American who has lived in Palermo and has stayed in many places at Mondello. If you take away only two things... #1. Location/view... You are not going to find a better option. #2. Size... if you have a bigger family this is the place to be.
More detailed info: This place is the perfect Sicilian experience. Everything from the wonderful hospitality of Valeria and her Father Aldo to the charm of having outdoor dinners on the large terrace. If you have a family I would very much recommend this place. The location is just across the street from ombelico del mondo where you can get beachside umbrellas and drinks etc. with little kids a close location is everything. The only downside is that the beach is not as nice on this side of the bay. The great part is that all the restaurants and the mini amusement park are very very close to the house. The house was perfect for us. I have a family with little children so it can be a terrifying experience with them causing little dings here and there. The house is older and not the kind of place one would be concerned about children being children.
We will be coming back if we can book this place soon enough next time!