Pros:
A fine and dramatic closure to the sequel trilogy and (arguably) the best film out of the three.
Action is mostly top-notch (see cons below).
Ian nails it once again as Darth Sidious.
Really impressed how they still managed to incorporate Carrie Fisher into the movie even after death. But dear God, it must have cost a damn fortune.
I teared up when Chewbecca broke down from hearing about Leia's death. Poor guy's lost so many good friends...
Cons:
Though I do praise the action, the climax battle lacked. Would have loved to have seen more conflict, even more Lando kicking ass in the Falcon.
The voice cameos with all the dead SW characters was just a tad jarring for me. I was really hoping for physical cameos there.
Small nitpick here, but being the (supposedly) last SW film, I would have loved to have seen one more lightsaber duel between Rey and Darth Sidious.
Neutral:
I wasn't too bothered by the fact Rey turned out to be Palpatine's granddaughter. But after 4 years, we can finally put all these Rey-is-Han's-kid or Rey-is-Luke's-kid theories to rest. Although the latter would have still been neat... but oh, well.
And yeah, it's now pretty much confirmed that Star Wars Rebels (and Clone Wars?) are canon. Surprised me.