I never rocked a SCAR-H, but I loved my SCAR-L. When we first got them, we went out to the pistol range on HAAF to put it through the gauntlet and see what its durability was like. I think I put about 1,000 rounds through it that afternoon, many of them on full auto, and I didn't have one single malfunction. I was a believer after that. The only issue I had at the time was the over-sized selector switch which, when climbing up mountain in Afghanistan I had to cinch my sling down to keep the weapon close to my body, and in the course of climbing the selector would get moved to "fire", and I was deathly paranoid of having an A.D. on infil (an RFS'able offense in batt.). From what I understand though, they have switched them out with low profile selector switches. Durability and accuracy are unmatched in this weapons system though. I was a huge fan.