Previously Josune Bereziertu and Ashima Shiraishi have repeated routes in the 9a-9a/+ range, but never a confirmed 9a+ classic like this one. According to what Greg Mionske told 8a.nu it took the 19-year-old seven days of work.
Her hardest ascents before this were one 9a (Bad Girl's Club) and a couple of 8c+'s.
At last year's World Youth Championships at Guangzhou, China, Margo took Gold in both Lead and Bouldering in the Junior category, and she has already reached the final in a senior WC bouldering competition (Vail 2015).
We'll no doubt hear more about this soon.