... I doubt you can find two people who can agree about these films.
I used them as my show discs when I had a bunch of people over to see what HD was all about, and it only took minutes before the debate started raging (this film sucked, that film rocked, this bit sucked, that bit rocked etc, etc).
For me, that sums it all up and is testament to their achievement. For every dissatisfying hokey cliche, there is eye-popping mind-stretching spectacle. Which bits are which is a matter of taste, and depending on how they are spread over the films ultimately dictates your viewing pleasure.
For me, having played a lot of Shadowrun as a kid and watching Ghost in the Shell way too many times, the first film only ever ranked as OK for me, but it was the polish, action and silly reality-babble of the sequels that rocked my world and allows me to keep coming back to these films. But that's just my take on it.
Watched back to back (with the first three animatrix films slotted in), this is just great escapist sci-fi cinema, warts and all. HD just heightens the whole experience, even if it's just watching Trinity in all her shiny PVC bullet-time goodness.
Turn down the lights, turn up the surround sound and forget your preconceptions. Just enjoy it for what it is.