it's okay, i mean, it's for someone who really wants to draw manga and stuff. i use it because it's free, though i've never tried photoshop. the brushes on sai are smooth as hell, yilx uses it himself. but i don't like it that much, it's confusing because theres so many versions and stuff, man. i just downloaded a few brushes from bittbox, and i have no idea how the hell to put ehm on sai. i dont even think im using a valid version. did you pay for photoshop?