Picked up the Stego yesterday right before seeing Rebirth (it was the mystery movie at AMC). I really really like the Stego- think it's the best one we've gotten across the lines so far. Some great movement in the head, the plates are nice and sturdy despite being a softer plastic, and the tail has some great range to its bend. Would love to see them make a return in the movies too.
As for the movie, without spoiling anything, I dug it. It feels kinda like the slightly angstier older brother to JP3 in that it's standalone, moves at a pretty breakneck speed, and is relatively light on plot and character. Since I liked JP3, I didn't mind it, but I can see folks being let down by it. Still, I think it had some really tense moments, some fun humor (mostly with one character), and some really cool shots involving the D-Rex at the end. If you want fun, mindless dino action, give it a try.