Well, it's not my kind of game really. It's linear, and sort of a puzzle game in some parts (when you're Frodo) then a fighter in others (as Aragorn). That said I've had a few friends who have liked it.
Well if you look at this review
LotR:FotR (PC) Review
from Gamespy, they don't make it sound very good (they give it 59%). I'm sorry I haven't given you a real answer, but have a look at the review and decide for youself...
I'm a horribly indecisive person, and I'm no good at giving advice.