This is what I was expecting for the game, which is a shame. But I think the gameplay concept could work really well, switching between metroid-like platforming and metroid prime first person shooting. And it looks like the wii once again does it's wonderful job of having terrible controls. It's something worth exploring again, but so long as they do it in a different light, rather than a sequel. But the first person shooting parts definitely need to control exactly like Metroid prime.
I think it'd also be neat for a game to characterize Samus better, but not in this way. She needs to be very strong on the outside, even when not in her power suit, but still human underneath that. The story in Other M seems to turn samus not just into a distinct human, but a very whiny human with emotional issues.
But incorporating a better story into a Metroid game is probably a good idea, outside of all that scanning from Metroid Prime. But again, it'd only work if Samus was characterized well, which she really doesn't seem to be here.
So really, it's just a badly fleshed out good concept. I'd like to see another game using this general style/idea, but get a different team who is more concerned with substance than style. I can see the good in this, but only as a jumping off point. As such, I'm not buying the game.