I've used the AGRs in several applications, and they work very well. I also like their Rock Ram systems, but that's a different topic. I'm not sure how much better they are than stock pumps, but they seem to steer easier. I know they run higher pressures. On the older 2nd gens, they make a pretty good difference, and seem to last fairly well. No real tests of time on the 3rd gens, yet. They are supposed to work best with their steering boxes(selling tactic? Probably). They're not too far down the road in Fort Worth, Texas, so I've been to their plant, and their managers and people are pretty nice, and very helpful. I've got one in the box, waiting on my stock one to give up, but it just keeps going..... guess I shouldn't rush it.