She's a lot easier to play than play against
She doesn't gimp you when playing her
She has every tool she needs
She wants a lot meter, but builds it pretty fast so she doesn't necessarily need anchor position.. probably
Her assists are sort of difficult to work with, but overall good
Her ways of opening people up are a bit limited; generally she'll have to dance around until she gets into a favourable position to start her offense (eg have the opponent block an L.Fireball)
Fireball Super looks like a safe DHC but I haven't ever actually looked at how it is on block
Characters that can get above her and don't have an issue dodging M.Shadow (eg Painwheel, Valentine?) are gonna be a hassle to deal with
Armored Command Throw could use something that makes it better (ie dropping the opponent next to you, so at least you get a meterless combo off of it)
Actual 'Tier placement' is gonna be pretty hard, considering we aren't even sure about the Tiers of the OG 8 cast members