Okay, I'm sure the more expensive paid sites are fine. But the 'dispersed camping' is a joke. 19 dollars and the area they want you to stay in is not just 'next' to the highway. There are basically no trees in the way— it's less dispersed and more 'camping on the shoulder of a highway'.
They do say it's next to the highway in the listing, but I think they misunderstand what dispersed camping is generally understood to be.
Did it seem safe? Not really. It was unclear whether the field above the building was an option for dispersed campers, but some people appeared to have given up and had set up there.
I will give them credit for having laundry facilities and hot showers, though they seem to be intended largely as an additional cost to tack on.
Overall?
Go elsewhere.