So is Kingdom Hearts 3 bad or just the normal cringe of Kingdom Hearts?

I liked Kingdom Hearts 1 and 2, but I haven't played them since PS2 was current. So I was thinking about grabbing them before the steam sale ends, but I'm wondering if I should just go ahead and get the whole "integrum masterpiece" collection.

I've heard 3 doesn't really hold up to 2 at all, but is it worth it just for a conclusion to the story arc?