My DS 6, DS 4 and DN 4 stayed at the Sand Castle Club in January while we went to a nice grown up dinner. The boys had a great time and really enjoyed their stay. There were only six kids there all night with three adults. Dinner was typical kids menu food that was brought in for them. I would use them again.
You might want to check if they have reopened because I know they mentioned they were remodeling shortly after our visit. They were going to reopen the child care at the Boardwalk during the remodel.