Good, there's a thread on this. I saw the film yesterday, and I have a lot to say!
Firstly I bet there will be more related characters... The Ben/Rey thing is clearly Pride and Prejudice in space. My theory is that Hux finds out he killed Snoke (he blamed it on Rey) and turns the First order against him. he flees with the Knights of Ren or joins up with them, there's some kind of showdown with the rebels and he saves Rey from one of them (as in her first vision) then they get together and make new Solo/Skywalkers for the continuing franchise! Some of my predictions came true this time so you never know... not that I'm biased 
I did love the Ben and Rey force bond storyline. It's what I'd hoped for, and I was pleased that the film ended with him looking guilty for what he'd done (as he should, trying to kill someone who rejected you is really not on!) I always love Chewie and the droids, I didn't think there was Porg overkill (and I loved that bit of one of them jumping up and down on the light saber handle while another peered inside!) The scene with Rose's sister was amazing, so was the Rey/Ben guard fight, and I enjoyed the island scenes.
Obligatory moans - I got a bit bored with the Finn/Rose storyline. I love Finn, and the addition of Rose, but their storyline was blatant filler and that chase scene seemed to go on for ages, also the kiss looked awkward and I thought she died afterward! Also the Phasma/Finn fight scene was over so quickly it was disappointing. And the flying Leia bit looked odd.
General Holdo flying the cruiser at light speed through the First Order's ship was amazing, best bit of the film. But it wasn't touching, because we barely knew her as a character. I've seen people suggest Admiral Ackbar should have done it and I think that would have been perfect. Emotionally charged as well as impressive. It would also have been an epic way to end Leia's storyline, but no-one was to know...
I felt there was an aspect of "Ha! Fuck your theories!" with Rey's parents and Snoke. Two of the most speculated on points and they amounted to almost nothing, yet they had been focused on in TFA so I felt that was borderline disrespectful to fans.
My only other negative is Daisy Ridley's acting... Sorry to Daisy fans, she's very charming, she has great comic timing, and when she gets it right she gets it very right, but she just cannot say some lines in a natural way. The first I noticed was in the trailer for TFA; "The garbage ull do". It sounded like she didn't know how to say it. I thought "murderous snake" was delivered really badly. A good actor can make a line convincing even if it's something they would never say, because it's something the character would say. Also, I think her accent wanders. She delivers some lines in an attempt at an upper class accent then slips back into her normal accent. I can hear it anyway, maybe it's just me!