I stayed at that park about 10 years ago on two separate weekends during the fall. I believe the sites are spacious (as opposed to the KOA sites at SPI) and have full hookups. They do have restrooms and I believe showers as well. It is a short walk to the beach. I didn't have any complaints. But then again, I'm originally from that area and never have anything bad to say about SPI.
My mom stayed there two weeks last summer with my kids and niece. She didn't have any complaints about the area nor did my daughter. My mom and daughter are biased to SPI as will so they didn't have anything negative to say about the park other than not being able to stay there longer. There were reviews on RV Park Reviews - Trusted Reviews of Campgrounds & RV Parks
about sand burrs, but my daughter said she didn't notice any.
If I may recommend two of my favorite restaurants, Blackbeard's and Pier 19. If you wish to do any fishing Captain Murphy's has 4 hour bay fishing trips for $25. They provide the bait, tackle and pole and will clean your fish for $0.50 each. You just need to bring your own food, snacks, drinks (beer is allowed). They also have 10 hour deep sea fishing expedition for about $75.