So, I watched it, and I'm still mixed on it. I know musicals are cheesy, but this was WAAAAAY over the top for me. Plus, if you've never seen the movie (yes, I realize that probably includes about 2 people in America), it wouldn't make much sense. My power surged in the middle of Elle singing to Warner after he proposes at the end, and it made me mad, because that was actually shaping up to be a pretty redeeming song.
I bet Luke Wilson was cringing at how Emmet was portrayed!
I think my biggest problem was the casting. Every main character, I kept thinking that we've seen it before. The girl who played Elle reminded me of Kristin Chenoweth, the one that played Paulette reminded me of Carol Channing, the one who played Vivian reminded me of Megan Mulalaly (Karen on Will and Grace), and the one who played Emmet reminded me of Anthony Rapp.
Oh, and for GC - I saw a girl in the audience toward the end in a pink & purple Tri Sigma shirt.