Dunes to desert to rock crawling, my Fireball Racing +6 with Bilstein's has never disappointed me or broke. I have ridden in Rhino's with Fireball, LSR, XMF, and Twisted Labs long travel kits and all performed great, in fact I couldn't choose which was best, they all worked well. I chose my kit based on ride, quality and that they are 30 minutes from my doorstep, so if somehting did break I could just drive up and get replacement parts. You will be hard pressed to find someone who doesn't think their kit is the greatest though. Choose a name brand kit that will still be there for warranty issues and you can't go wrong.