Even though we know the formula very well from the first two "Terminator" movies it still works: A T-1000 (good) and a more powerful T-X (bad) are sent back through time to terminate Kathrine Brewster, the wife-to-be of John Conner.
A rather unexpected ending: Judgment Day can't be stopped besides all the efforts from John Connor and the T-1000 and the nuclear first strike by Skynet happens, leading to the establishment of the resistance lead by John.
It has some stupid scenes that are out of place but it is a good action movie with a good pace. Doesn't come close to the first two movies but isn't a huge letdown like Salvation.
so Much better than Genishit
It gets a 6 from me purely because of Claire Danes, otherwise it's a pretty poor attempt at a sequel. Fortunately the poor effort resulted in the sequels trying a little bit harder.
Should probably be a 5, but the special effects were pretty entertaining. :-)
Dismal incarnation of an otherwise brilliant franchise. Sorely disappointed.