I have honestly never been to RRB. Always wanted to go, but in that area we always end up at Windrock or Tackett. There are some trails in Windrock that only real rock bouncers/crawlers can do...and dudes with portals, tons of gear reduction, and at least 35"+ tires.
Its definitely a different style of riding though. We search out the crazy crawls, and don't really do a bunch of trail riding just to trail ride. Mostly just riding between obstacles. That's just me though. My personal fave.