I have an EX21, I've only owned it for about 4 months or so, and I love it. I previously owned a Delta 2000 series and it was my first saw, I thought it was a great saw and i still have it, but there really is no comparison. The EX put the little Delta to shame, I was looking forward to purchasing a Dewalt, but with all of the problems that people are having with the second series I was afraid to buy one. The EX that I purchased is an excellent working piece of machinery, and I have not had any issues with it. Yes it took a couple of weeks to get used to the differences between the two saws, and ocassionally I still reach under the EX to shut the power off, like I had to with the Delta. And I really do miss the blade clamp system that the Delta had, but I am getting used to the screw type system on the EX and have not had any problems with it either. As far as adjusting anything I didn't have to, and my saw came straight from the factory and I don't live in the U.S., I live in Canada. I am sorry to be reading about the troubles that you people are having with your saws, and I do hope that you can get these issues resolved to your satisfaction, good luck.
Len