i just had 140 souls and its just so much fun
you have this gigantic aa range and you get a ms bonus for just attacking.
so far my experience is as following
early game: noone says anything
mid game: noone says anything
late game: RIOT WTF IS THIS RANGE ARE YOU STUPID!?
idk how riot will nerf her but im pretty sure its either going to be bonus to range every 25 or 30 stacks, or just flat reduce her starting range from 600 to 550.
so i HIGHLY recommend that you have some fun with her now.