Love the Shures. I am about to upgrade from the E2's to the 4's or 5's.
I had the original Bose, then the QC2's. Decided to try the Shures since I did not really like the sound quality on the Bose ... and they are bulky. Shure was selling direct then and had a no fuss return policy. Tried the QC2's and E2c's head to head and sold the QC2's without a second thought.