A friend and I picked up the XRP's at the same time and we both have been very impressed with the quality. I have spent day's jamming 3/4' auger bits through hardened floor joists in 100 year old houses. I guess the clutch has slipped a few times but nothing that a quick adjustment hasn't fixed. It's been buried under piles of plaster, stored in my trunk over weekends with 30 below temps, dropped on cement floors and it's still going strong 2 years later.
Not sure what you guys are doing but I've pounded mine mercilessly and it rocks.