Ratings are really subjective. What are you after? 

~A secluded spot in nature? 0 stars. 

~A small campground inside a small town with flushing toilets and showers (albeit not new, super clean, or extremely nice), a lake with docks and boat ramp, large playground (with the cool old structures AND new ones), a baseball diamond, football field, city pool, creek with fish, and a tennis/basketball court? 5 stars. Yes, ALL of those things are right next to the campground.

I grew up in Lake Park, and I've stayed in this campground as an adult with kids (simply to visit family, certainly not to "get away" and enjoy nature). Lake Park is a small, rural town, and the current local passtime appears to be driving around town in ATVs and side-by-sides. It is noisy and extremely annoying. Every single person that drives by will stare at you; welcome to a small town.

There are a couple tent spots (one of which we utilized) that have some shade, a picnic table, and a fire ring. There's also a small RV area where people live in their RV's (complete with decks) for the summer. 

If you stay here, perhaps to visit the lakes area without the crowds or at a lower cost, perhaps to fish in Silver Lake, or... well I don't know why else you would stay here... you should definitely try the breakfast or taco pizza at Stans Corner -- the local gas station/convenience store. You could also walk to the 2-block downtown on Market Street and try out one of a couple restaurants or a few bars. If you want to swim in the lake (I really don't think it's good for swimming anymore, but if you want to try your luck) you can go to the boat ramp by the bridge by the city park, the dock at the end of Trappers Bay, or to the public access area (dock and boat ramp) on the west side of the lake, accessed via 110th Ave (go west on Hwy 9, and turn left onto 110th st., it's a mile or two in on the right side of the road.

Regardless of the passtimes of driving around and staring, the people of Lake Park are generally very friendly, so you should definitely walk around and meet some people.