From my experience with it, the .21V2 isn't a bad motor. I had some odd issues with mine, but you get the oddity upon occasion. Mine lost 2 sleeves and a conrod relatively quickly with only about 2 or 3 gallons through it. I've since invested in a V-Spec. Overall, I'm mostly pleased with the motor. Tons of top end, and it has a decent amount of punch as well.