T-600's are like the basic Terminator models, there really good like all Terminator units like there a bitch to kill and really strong but they have many loopholes like areas they are weak like their necks. Also they have not fully mastered the whole human- Terminator disguise cover thing like the Model 101 (Arnold) or any of the other Terminators like the T-800 but they are still pretty cool
in all the Terminator series the most badass and ridiculously unfair is the T-1000 which practically cant die no amtter what unless its stuck in lava