I'm about halfway through, just past the jeep chase, and I agree with alot of your guys' impressions. The review posted by davygee nailed it perfectly I thought.
IMO, even though I've only been through about half of it, this was my GOTY for 2007.
Oh yeah, and the discussion about motion controls, I didn't mind them so far for the grendades and balancing bits (which are really few and far between), you can actually skip them when using grenades if you don't want to use them.
Also, another game that I think gets motion controls right that nobody has mentioned is Warhawk for the flight sections, try it out if you don't believe me.