I DO enjoy the LotR trilogy. It's not perfect, but I think a lot of the changes were reasonable adaptations to the cinematic format. The fact is, they never could have been made without significant changes and there's no way they could have pleased everyone.
Now the Hobbit trilogy, IMO, is an example of a soulless trilogy made without any care or compassion or respect for the source material. I don't know if anyone here is familiar with Lindsay Ellis, but she did an excellent series of video essays on what went wrong there.
https://www.youtube.com/watch?v=uTRUQ-RKfUs
That being said, I came pretty late to Tolkein. While I had read The Hobbit, I spent almost 20 years FAILING to get through Fellowship - failing each and every time I got to Tom Freaking Bombadil, got bored, and wandered off to go read some sci-fi. It wasn't until the release of the first movie was approaching that I accepted a deal with my best friend (he totally failed to uphold his end) where my part was to read Fellowship before the movie came out. I picked up the excellent unabridged audiobook set and listened to the entire trilogy before we sat down to see it on opening night. :)
So, I definitely became a fan, but didn't have the long time investment in the books that many had before the movie came out. I totally understand that influences my opinion.
Oh, and the roughest part of the movies for me is definitely the plot 'twist' in TT when Faramir makes the exact OPPOSITE decision. WTH??
Sam: I know. It's all wrong. By rights we shouldn't even be here.
No kidding, Sam!