Having seen it a couple of times, and enjoying it quite a bit, I can agree with pretty much all of that.
* I thought the casting was mostly spot-on. Even the smaller parts were done well.
* They translated many of the characters well, especially Larry**, Lloyd, Glen.
* Rita and Nadine being combined, as with Deitz and Deninger make sense, I am sure it is an easy way to trim down a potentially bloated screenplay.
* Everything with Stu's stay at the Govt facility is a bit campy. On a related note, Gary Sinise is a boss.
** Larry is my favorite character in the novel and maybe my favorite character in any King novel. I was most apprehensive about how they handled him and I was fully impressed. And I never heard from that actor Adam Storke again.
I have other thoughts that are later on that I will small font for you to avoid for now.
* Shame we don't get to see The Kid at all but I can understand why as he doesn't affect the main plot, and only interacts with one other character, who, while significant, isn't in the story very much.
* Harold was a bit of a miss for me. His transformation was so.... mild? In Maine he is just mildly annoying. His borderline psychotic behavior isn't even hinted at, and he ends up being a slightly disgruntled teenager who kills some people because his crush is seeing another guy. The series' biggest downfall for me.