This is definitely the book from which the movies diverged the most.
It was nice to see more of the story after the war ended, with the Hobbits going back to the shire for multiple chapters. It felt a little jarring as far as pace and stakes are concerned, but I enjoyed that extra time with them.
Now that the story is concluded, I found that the characters of the Hobbits & Gandalf were brilliantly done, but it felt as though Legolas, Gimli, & Aragorn were pretty one dimensional.
Without getting into spoilers, I also appreciated seeing the end to some of these characters that weren’t shown in the movies.
Overall, I’m very glad I finally marked this trilogy off my TBR. I really loved these books overall & it’s an experience everyone should have in their lifetimes.