As you may have read, critics are divided with the movie. Moreover, many fans of the franchise did not like it because it lacked the triumvirate: James Cameron, Linda Hamilton (and her uber-cool one hand shotgun pump in T2) and the original Terminator, California's Governator. Well, Schwarzenegger, made a "cameo", but it wasn't really him, just his likeness. In addition, that was Hamilton in the tapes.
Well, for the record, I enjoyed it (for what it is). Though beautiful as he is, this is not Christian Bale's best performance. Thus, I give credit to Australian actor Sam Worthington (below) for giving the movie "heart".
After watching the film, I understood why Cameron handpicked him to be in T4 (he's the lead in Cameron's Avatar). Well, I don't know about you ladies, but I certainly don't mind seeing more of Sam in the future...hopefully mine. Eh-hum.