I certainly enjoyed the movies when they came out, I own them all on DVD even. I felt some of the changes were a little off and didn't make sense. I felt the exclusion of the Tom Bombadil section was understandable. Though it was a clever section of the book, it was a long subplot and for an abridged film version it made sense to remove it and have the Hobbits obtain their swords from Strider instead. Other changes bothered me much more.
The biggest thing I have against the movies is that they brought the story of the Lord of the Rings to a much larger crowed. Now everybody thinks they know the story of LOTR, yet they would probably believe the Lord of the Rings of the title is referring to Frodo. Lord of the Rings used to be this great secret. This wonderful work of literature and we all knew the story. If you found another Lord of the Rings fan it was great. Now you find a Lord of the Rings fan, and there is a good chance they have never read the books, and might even go as far to say the books suck and that it is great it was made into a movie. Another thing about the movie is that now, anytime I recommend the book to a friend and they actually read it, they already know what happens, and in their mind Elijah Wood is Frodo.
Just my thoughts on the matter.