The Good: Great coverage, you don't have to take off your shoes to put these one, they won't move around on you while riding, clever x-strap design is better than velcro since it won't loose grip or wear out with time, well ventilated, hard shell protection makes it lighter and stronger than kelvar enforced pads.
The Bad: More expensive than some other pads out there but the performance is worth it in my opinion, gives you funny tan lines on the back of your calf when your out in the sun too long lol.
Simply put; I will not use a different set of pads for DH/Park riding ever again. Over the years I have bought 3 pairs of them (past pairs have taken serious abuse and have gotten pretty smelly/dirty too). All my riding buddies use these as well and are loyal Fox Launch users themselves. The x strap system is very simple and hardly ever comes undone. Another clever part about the pads is the fact that they go all the way down to your ankle so they can't move down on your leg because there is no where for them to move. You can use them underneath your jeans or with your favorite pair of riding shorts. I have tried many different brands of knee/shin pads and no one seems to be able to get it right except for fox so why go elsewhere for your protection. I don't recommend getting the shorty version of these though, they do slide down and move around on your knee plus they leave most of your shin exposed.