TV’s Frink said:
Agreed! I’ve read some complaints that he took his mask off first in that scene, rather than later in the movie, and I’m all like “but leaving his mask on would have robbed that scene of its power.” You need to see his face in that moment.

Make that two. If he doesn’t take off the mask, all we have is a complete Vader reboot. He already fills that role to an extent, but he does move beyond two dimensional when we see he’s just mentally unstable, as opposed to being some deformed freak\alien\cyborg\etc\etc.

I also agree that with Rey not only figuring it out but also letting him know she sees it, it gives the story some depth. In defense of my earlier criticism of Kylo, the depth is all Rey. I still think Kylo borders on merchandise tie-in. I think he’d be more interesting as a straight villain. Something along the lines of Krennic or Tarkin. Someone who is just an evil criminal, not driven by the baggage of granddad and mom. Enough with the universe-shrinking already.

Again; Fingers crossed for Rey Random.