Decent.
I was a little underwhelmed compared to what I was expecting from camping at a national park. The positives are the cheap rates and there are bathroom and shower facilities. If you want old fashion tent camping the park does have some backcountry campsites.
The cons are the lack of actual campsites. They are more like parking spaces. Probably to appeal to the people who use campers. The noise of the highway was constant and annoying.
Overall I enjoyed my time staying here. Wish I could have done more backcountry camping but the weather didn't permit it.