The house was nice and Elena is a great host. She responded quite fast and tried to accomodate us.
Some general comments that may prove helpful:
1) Renting a car is a must. Taxi charge extravagant money. With no car and if you stay long there is nothing much to do.
2) You have to understand that the general area around Mondello is not clean. On the way to the beach you must get used to a lot of rubbish on the roads. The general impression is that the local authorities do not care about the cleanliness of the place.
3) The beach is good, water is clean. There are cafes and other fun places. However, you have to know that the majority (75% of the beach) is gated. It costs 11 euros per person per day to enter this part of the beach (two beds and an umbrella). If you stay long, it takes money. If you choose the free part of the beach, there may be no spaces during the season and you may be in the spot where you will be constantly experiencing water on your blankets.
In general, good place to visit once (food is cheap, wine is great), but we would generally prefer other spots in Italy.