She did wonderfully! Don't be fooled - the look of skepticism on her face is merely being embarrassed that I'm ruining her grown up moment by taking a picture.
She didn't have much cut off in terms of length but had split ends removed, lengths evened up, and layers added. She wouldn't leave her hair down to get an "after" picture but you can tell the difference by how much more tidy her ponytail is.
She really enjoyed adding another grown-up activity to her quickly-expanding repertoire.