While I do like her character design and find her quite relatable, she strikes me as the LEAST COMPETENT Equestria Girls antagonist to date. Her use of the Memory Stone to erase ALL of her awkward social moments — and in effect, HERSELF — from her classmates' memories seems to only compound the very problem she was trying to solve. To me her anger at Sunset just seems grossly misplaced.
Still, I'm glad she did NOT transform into a Monster-of-the-Week.