I've been waiting to see this for AGES, I enjoyed the first one, the second was utter pants, but with M:I-III, J.J. Abrams is a the helm, so that's gotta be promising!!
For the most part it is. It certainly ups the ante from number 2 (both films take a very different tack from the original Brian De Palma outing), and it's a hell of a ride through most of the film, throw in some, 'here's how they actually do that' bits and Philip Seymour Hoffman and it's top notch. Simon Pegg was pretty funny, although did seem a little out of place among it all (still can't see him as Scotty, but that's not far off now).
It was also my first look at Billy Crudup and while he was pretty good, I'm not entirely sure how he's gonna come across as Dr. Manhatten in Watchmen.
But anyway, the plot has a couple of interesting twisty turns in it and as I say, it's a pretty good ride for the most part, but I was HIGHLY let down by the ending, something I wasn't expecting and I can only hope that Lost doesn't fall foul of it, if he has the reigns for the finale.
Mission: Impossible III - 6/10