I've stayed at the RC Naples in the past and was very pleasantly surprised. I often find these types of RCs to be dated with a 4-star-at-best staff. This was definitely not the case here.
The staff was superb, anticipating all of our needs in a warm, friendly way. For example, while working out, they have many attendants on duty to help in any way they could, passing out fresh towels and cold water.
As for the setting, their beach is about as good as you'll get in South Florida and the casual restaurant overlooking the beach was quite nice. Their pool was great for our small child as well as all the other kids facilities. If you like golf, Tiburon is my favorite public course in the region and love that they now have a caddie program.
My only complaint is that the rooms are on the small side and suite can get outrageously priced during peak periods. If you can swing it or get a good deal, a suite at the RC Naples is probably the best option for the area.