I haven't played the original release (for both) so I can't make comparisons, but the game is really crisp (except when transitioning to combat, the screen then goes pixelated for that time).
I don't have any issues with the music (and no, no option to play original music), the framerate is good at all times for now, and yes, there are some weird faces made from time to time...
After one initial loading at the beginning that is slightly longer than the rest, any other loading I've seen has been blazingly fast.
No skippable cutscenes, I tried everywhere but CG movies, goes into pause screen or just does nothing.
Speaking of pause screen, WHY does X-2 give the option to go back to title screen, but X does not? Why
As a side note, I've been playing only a few hours on both versions, and my copy is the downloadable one on PS3.