LOTR is one of my favorite games of all time. But it was not without its issues and complaints. (15+ years is a long time, so people forget)
Stuff I remember reading
-Gimli/eb/Gollum shot is terrible
-Flippers would get too hot and weak
-VUK switches are flaky
-Ring magnet is not reliable
-DTR 2 ball mode quirks, which was changed to 1 ball option. Blowing fuses, double balls stuck.
-Valinor requirement rules are cumbersome making player qualify and play all 3 multiballs repeatedly if DTR for Valinor failed
Again, love the game, but it was griped about a lot.