First, the name is misleading, there is no "falls". It's actually a rapid, so anyone looking for a waterfall is going to be disappointed.
The campground is small, just a couple of spaces that are right next to each other with no brush or privacy. No water, and it's a steep long hike to the river, so bring your own. There is a pit toilet there, that's it for comfort features. Unfortunately, when the weather is nice this campground is usually overrun by transients and trimmigrants, and vehicle break ins are very common here for folks thinking to use this as a start point for hiking or river access.