Took my wife to this show for our wedding anniversary. I wasn't too excited about it.  I like his music, but never really liked it too much. Kinda lumped him into the Jack Johnson or Dave Mathews genre which is really good but not stuff I get really into.  A woman named Colbie Caillat opened 2nd and she was pretty solid. Never heard of her but very talented.  John Mayer's band has a lot of depth in musical ability.  I was most impressed by his ability to write and orchestrate his own music but his blues riffs and guitar playing ability was incredible.  I was definitely shocked and impressed at his obvious blues roots influences.  Very good concert, at a great venue.