BTW, I love it. And I liked a lot of things that people didn't.
Adam Driver's Kylo Ren -- Nobody is strong with the force yet. He's got some neat tricks, what with the mind-raping and blaster-halting, but he's so enraged, so lost and so unstable, that he has yet to reach deeply into his hatred for his Dark Side force-powers.
In the video game The Force Unleashed (at least #2, maybe #1), "unstable" lightsaber crystals gave the same effect as Kylo Ren's. And unstable is Kylo Ren.
I like that he didn't have a Darth in front of his name. I may be mistaken, but it appears that the bad guys are indeed bad, but not quite as well-versed in the Dark Side. Perhaps the big bad guy is an actual Sith species, and he gets his pool of knowledge from the culture of his people? I don't know. I like the mystery.
He was also pretty crappy with a lightsaber, all-in-all. He was injured, sure, but he's clearly no Obi-Wan in the prequels.
When we look at the OT, Dark Vader appears to be an amazingly talented but muzzled lightsaber fighter. He looks like crap in A New Hope, but he's just testing the old man. In Episode 5, he toys with Luke, trying to bring out his anger. But as soon as Vader himself gets injured, it only takes three motions of his lightsaber before Luke is disarmed, has no hand, and is in position to join him or die. In Episode 6, more or less the same thing. He toys with him, just trying to get Luke to reach his darkest parts. I don't know if he counted on the Emperor to stop him from slaying Vader or not. But I still don't see him as totally beaten even with him on the ground. Though I could be wrong.
Anyway, Kylo and Rey really go at it with everything they have. They clearly suck, but are giving it their all. I liked it.
Also, I liked Kylo Ren's helmet. It changes his voice and his face, both which he despises. He cannot hide from the truth, which is evident in the tears in his eyes. But he is utterly lost, and must hide from the shame that is his own face.
Poe - I loved the character. I loved the emotion of finding his friend again. He didn't need any more in this movie. He felt very Hermione-ish to me. She's barely in the first 2 or 3 movies, but by the end, she's one of your favorite character. An into now is good. It also cleared the way to allow some better introductions of other characters.
What are all the specific origins, parentage, how did the lightsaber get there? And other mysteries?
I like mysteries. And especially when they have satisfying conclusions. It's easy to guess a million answers that make sense, and that's what makes them good mysteries. When they're revealed, you throw away your other 999,999 other guesses and declare "I knew it!" with a big smile splayed across your face.
The main issue I have is:
Rey
Ren
Ben
Poe
Finn
I kept swapping names in my head. For a while, I thought Rey's name was Rey Finn. I'm terrible with names, though. I think I got them all straight now. :)