Okay, I've finished Helen's path. I'm not going to keep you guys waiting any longer for my impressions, because I think I've played enough to be sure.
I love it.
Here is the entire sum of my problems with the game:
The masks are largely useless.
The story really didn't need to be there.
Some of the "non-traditional" levels aren't all that fun.
That's the lot.
It's worth pointing out that the game has as many "traditional" levels as the original NiGHTS in its entirety. Not all of the "non-traditional" levels suck, some are quite fun.
The game is stylish and often beautiful. The game is, as Shane said in his EGM review, slavishly faithful to the original. The music is excellent. The controls are slightly different, and it takes a level or two to get a handle on the subtle differences, especially if you've been playing the original recently.
The bosses are god-damned inspired.
You can skip some cutscenes. Unfortunately the only way to know if you can is to try. You only have to restart the "world" if you lose to a boss. If you lose on any of the stages, you can restart from that stage.
Honestly, I'm not sure how someone that loved the original NiGHTS could be so unhappy with this as to push it away. It's a different game in a lot of ways, and it cribs so much from the original that it doesn't have that originality going for it, but really... I'm happy. I'm quite happy.
Thus, whatever anyone else says about it from here on out really doesn't matter one flying fuck to me. I waited eleven years, I didn't think I'd ever see it, now I have it, and against my greatest fears, I loved it. THANK YOU, SEGA.
edit: oh, and in case anyone was dumb enough to try, don't bother with the wiimote controls. Go right to the pad, you'll be fine.