Belonged to ROD for many years, but now have RPI. They overlap on many campgrounds, so dropped it. You usually get a free year when you buy into your home campground, so that gives you a chance to try it. It worked OK for us, but you have to be flexible. The 30/60/90 day window for reservations was a problem when trying to plan a trip far in advance. Campgrounds restrict the number of ROD's they let stay. They may have spaces available, but if they reached their ROD limit, you're out of luck. Occasionally, we were placed in the worst site in the campground. But the price is right for camping.