I saw it last night. I had read the positive reviews, and knew a couple of spoilers. I was expecting to be entertained, but no more.
I was blown away. Yes, they destroyed the old canon. Big deal, it’s a reboot, and, unlike most reboots, it has an at least plausible (in-universe) peg to hang it on.
But who cares. I never watched the old Trek (I remember watching the first run of “Mantrap”) for the hard science or for Roddenberry’s vision of Utopia, but for the interplay between the characters, especially the Big Three. And THAT, they got in spades!
The casting was remarkable. Kirk simply WAS Kirk. Pine didn’t do Shatner, he did Kirk. Sylar was amazingly believable as Spock (and, yes, my wife and I both instantly interpreted “Live long and prosper” as “Fuck you!”). Karl Urban couldn’t have been (1) less like Eomer or (2) more like McCoy.
They threw a little red meat to the fanboys, including Sulu’s fencing, the green babe, Spock’s raised eyebrow, and “Wictor, wictor”. Lots of fun, but not enough to be ponderous.
Finally, Nimoy’s part wasn’t merely a cameo, it actually was a substantive part. I loved his final salute to his younger self - which is also, probably, his final salute to the Trek verse.
The movie brought back a sense of fun to the series, from which it had been pretty much drained. I want to see it again, and look forward to the inevitable sequels.