Mosquitoes Galore
Note that this review is from June 2019 when we came during a freak accident of mosquitoes basically overtaking the entire national park of Canyonlands and surrounding areas. Due to a cool, wet spring and early summer, mosquitoes would literally start attacking your car when you would park and immediately attack you as you exited the car.
Hopefully now that it's been over a year since I've been to this campground, things have changed. With that being said, it's an honor system - you pay and there is no guard on site. There are bathrooms, but nothing else since you're inside of the national park. Because this national park is so large, I would recommend buying everything and anything at a nearby grocery as you won't find anything aside from the visitor center inside the national park.
The campground was lovely - lots of space, stargazing, and secluded - away from the crowds, but also conveniently located to the major sites to see. Would recommend (as long as mosquitoes aren't taking over)!