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 was one 9a (Bad girls'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.