We stayed here in May and had a great time although I think the season doesn’t really get started until the start of june . The main area in mondello is a good 20-30 minute walk and the local beach is nothing more than an old disused boat slipway (we avoided)
Apartment was lovely and spacious and very clean as described , a proper sun trap with the different balconies. The local shop is very well stocked but doesn’t sell bus tickets so getting to main area can be tricky