I have Dakar HD under my Taco and LOVE them. I complement them with Bilstein 5125s and 1.5" (3/4" lift) All-Pro greaseable shackles.
I don't race or jump or flex hardcore, though; I carry a lot of weight overlanding. They are great for this. (If I wanted to go any heavier for, say, on-board water, aux fuel, big rear bumper, or a trailer, I might consider airbags at that time.) But for now, my rear setup can carry 6-800 pounds beautifully. On the road, with the shell and sleep platform installed full-time, it rides like butter.
Highly recommended.