When 3 left off I found it hard to stomach how they could have made another movie. Given the plotline I think they did an alright job. People seem to have a lot of hate for this movie because of Christian Bale. The movie had a roadwarrior/madmax/fallout 3 feel to it. I especially loved the terminators in this one. Very impressed with the the special effects.
The cameo by arnie in cg form was neat to see. I'm pretty disappointed in Rotten Tomatoes, yet again, for being so predictable and partial, as usual. While I admit the story could have been better, there was a TON of action in this flick.
Rotten Tomatoes gets an (F-) as in Fuuck you for being so god damn predictable.