>>714335449 (OP)None whatsoever. The game respects the player's competence from just about the start of a playthrough, and backtracking was a little less monotonous than in Prime, especially for a blind run. I think the story is a little goofy, but overall, I give it a pass for the solid execution of a LttP-style darkworld in 3D.
My only lasting gripes are:
>portal load times kind of suck>final Dark Samus gimmick is a little cheap