A great place to be if you decide to stay in Mondello. The flat is nice and clean, providing all that you need.
The city beach, however, was not our favorite one, since it had always been crowded. We didn’t like the profile of the beach either; it’s more for the mass tourism, and that was not what we had aimed to explore as a couple without children.
A couple of other, a bit more different beaches with cocktail bars are reachable 25-30 min walking in the Palermo direction. There are city buses, too, but sometimes they tend to be unreliable in terms of accuracy.
To visit amazing beaches, we recommend that you rent a car and explore the Trapani province. It is a bit more expensive, but it’s worth.
Finally, we eventually realized that it would have probably been better had we decided to get based in Palermo and travel to the beaches from there. Palermo is magical, and it makes sense to be stationed there if you want to experience a vibrant culture.