"good reasons," bit of a loaded phrase, huh? my fault. lol.
your good reasons can be literally anything you want, obviously; but i would challenge things like, "well it looks dumb" or "that's a reddit anime lawl" or, idk if you're following me, anything that doesn't have a real concrete reasoning.
if you can't articulate why you dislike something beyond these superficial levels, then it's probably not a "good reason."