They are ridiculous live. Ridiculous. If it makes you feel any better, they weren't headlining so their set was only about 40 minutes, and they played all Total Life Forever stuff. Was really hoping for a few of Antitdotes songs... But seriously, go listen to After Glow -- the part from 2:40 to 3:10 -- I came. Several times. Also they played a really good jam during Miami. And Jack the drummer is a BEAST.
ETA: I think most of the crowd was there to see them, too. Everyone was chanting "FOALS FOALS FOALS" (for the opener!) when they were done and the house lights didn't come up right away. I was really hoping for a couple more but no such luck.