I thought these two were horrible. I went in on strong recommendations from two people (including J S), not knowing any of Amy or Eric's material. Together on stage, they were sloppy (not in sync w/ one another), had horrible harmonies, and missed many vocal queues btwn them. At their "mature" stature, I expected a much more professional show.
I went last year (for free!) and it was awesome...and I can walk to Seattle Center from my apartment. I even had the "bonus" of the sweet, sweet sounds of the Wu-Tang clan blaring into my apartment window at 11 PM at night.