I have very much enjoyed this game and would recommend it to anyone who enjoys long platform games!!
1. Hobbit's have very small legs - Is a platform game really a suitable genre? Perhaps not, Bilbo cannot jump very far, and despite having a great walking stick/pole vault type super jump you will often find yourself falling to your death. Either via a chasm, or into a river. (Bilbo can't swim!!)
2. Bilbo isn't very 'hard'. Despite having three different weapons, walking stick, Sting (yes it glows brightly when goblins are near and helpfully lights the way in dark caverns) and throwing rocks, Bilbo has no block feature to speak of. Your offensive attacks increase in power and style as you progress, but most battles with three or more enemies will have you running away (you can't run very fast at all BTW) quicky hitting the target button throwing a few rocks then repeationg the procedure. This becomes more apparent the deeper into the game you get.
Despite these flaws, what this game does right, it does great. Most of the levels are huge, and you can just do the basics, or search around everywhere looking for more bonuses, graphics are pleasant all round (look out for that camera though) with some luscious cut scenes, and the music is truly fantastic and really sets the mood. It really depends on what you want to get out of it, if you're into great exploration then the game will last twice as long and present you with great satisfaction as the end level screen adds up your totals. If however you're easily put off by less than perfect controls and programming then steer clear. But for any hard core Tolkein fan, the opening level some justify the price alone.