tl;dr – a very good retelling of the original
Thoughts, in no particular order:
1- Visually and aesthetically impeccable. Director Rupert Sanders did an excellent job of portraying a society figuring out its relationship with acute, mechanical, physical augmentation. He skirts the line between its usefulness and nightmarishness, though with the subject matter and the people involved, we see more of the nightmare aspect.
2- Mostly followed the plot points and thematic elements of the original, though obviously it much more Westernized: there’s less philosophy, more conflict, and a less open-ended resolution. There were times things where characters turned narrator and it kind of broke the spell, particularly the first scene where the setup of the Major’s creation was over-explained by the computer-intercom.
3- Related to #3, as I had predicted, the “I’m going to kill my creator” sentiment is there, a sentiment that is wholly absent from the original. This was to be expected since Western-philosophy based folks have (at least) a mild fear of metaphysical/supernatural phenomena, and it seems that sci-fi, as it is embracing a lot of transhumanism and artificial life-creation scenarios, is being expressed as a kind of wish-fulfillment at being able to “get back” at our creator. Since man can barely rebel against God, much less commit deicide, positing “God” to the natural level, as a literal creator, gives us physical access to Him.
4- Regarding the whitewashing accusations: that Motoko is basically Anglo in appearance is fairly central to the plot; her completely artificial body needed to look different that her original, Japanese one. Progressives don’t need to wring their hands anymore about any of this, and Rupert culturally appropriated Western-style diversity into the cast that wasn’t there in the highly monocultural Japanese version. From what I could see, one or two characters in Section 9 were blackened or feminized. The two antagonists are, thankfully, White Folk, though the Antagonist You Didn’t Expect redeems his/herself nearing the resolution. The Head Evil White is male, as expected.
5- Pure trivia: Togusa, in the original, used a Mateba auto-revolver. In the film, it was an older-style gun compared to the more advanced tech (it was emphasized that he was purely natural/non-enhanced and his handgun reflected that), and in the real world, they are not manufactured anymore. There was a scene in the 2017 version where Togusa very noticeably uses a Chiappa Rhino handgun, which was modeled after after the Mateba design, and share the same designer.