I just watched this as they aired the series as one 171-minute long movie, but it didn't feel long at all since there's always something interesting or at least exciting going on in this show/movie. Honestly, I'm not that familiar with the Bourne character or saga (I've only seen one of the installments, plus the older TV show with Richard Chamberlain as Bourne) but I think this one is enjoyable on its own terms.
The premise is similar to "Bourne": a man wakes up suffering from heavy amnesia, unable to remember his name or any whereabouts about his life before that moment. He soon finds out that the president of the US has been assassinated and that he is being chased after, and that he has a tattoo on his upper chest with the number "XIII". From that on, he will have to survive and find out who he is and why he has so many and such fierce enemies.
The plot is quite smart, it does not provide (or need) many cliffhangers or unexpected turns until the final part. It is also a smarter-than-average plot for what you would expect from an action movie. The characters are not terribly well developed, but all or most main actors do a good job.
