>>15715078Bulbapedia:
>Elevated chance of critical hits>Elevated chance of avoiding attacks>Extra Experience gain>Shaking off status conditions>Attacks doing extra damage>Enduring attacks that could otherwise make it faint>Makes Sylveon EvolveAlso, yes, pokedoge simulator. makes them seem more like real critters if you use it. e.g. Watching Kadabra freak out about its spoon being touched; Blaziken trying so hard to be too cool for you, but succumbing to unfathomable bellyrubs; Gible almost eating your hand every time you give it a treat.
Its got combat purposes, and it's sufficiently entertaining enough to make getting those bonuses non-painful.
I'd suggest giving it a try. Or at least handing it off to like, your little brother, so he can play with them, but you still get the cool boosts.