I was at the final performance of IN THE HEIGHTS and it was sensational. The three moments that I won't ever forget:
1) When Lin made his entrance there was a massive ovation, he stayed frozen in pose for a while and then dropped his head when it really hit him
2) Carnaval del Barrio was absolutely raucous, with former cast members and others in the crowd waving flags. When Lin said "can we raise our voice tonight/can we make a little noise tonight?" he was clearly breaking the 4th wall and the place went nuts
3) His post-curtain improv rap which, as always, he nailed
I know Lin has said it's his #1 Broadway experience but it certainly was for the audience as well.