These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The new character designs, most especially on Motoko's. Of course, the character designs have been changed many times as pointed out in this article.
For some, the new voice cast unlike the Oshii movies and the SAC series where they retained the original cast.
Genius Bonus: Motoko's mention of Saito's old JGSDF job as a Marine. While the actual JSDF doesn't have one, the Ministry of Defense has made recommendations that the force should have a marine/naval infantry force to conduct amphibious assault in a future conflict if any of its islands or outlying territories are captured by enemy forces due to tensions with China over the Senkaku Islands.
Narm: Motoko's face while using a chokehold on one of the cyborgs.
Tainted by the Preview: The different art style and character redesigns turned off a lot of fans from watching the series.