I recently saw Coheed and Cambria in concert, and I just wanted to say, that I cannot reccomend them enough. Overall, they were the best they had ever been of the 3 times I have seen them, and they even were mixed correctly (although that could depend more on location). If you can still get tickets, I would reccomend it.
Really, the only negative thing were the two warm-up bands. Don't remember the name of one, but the other was called circa-survive, and they were some horrible bieber/jonas girl band.