The Lord of the Rings game is glitchy as hell so be warned if you plan to put that on. We had major problems on our second run through as the game forgot we have completed the "Mirkwood" quest which meant that we had to join a random public game and forward my story that way, I played through in co-op and both of our stories broke at that point and we had to split up until each of our game save files had passed Mirkwood. (If you play the game either save and quit at the Dwarf turret defence section or carry on playing until you pass the Mirkwood section (About 40minutes of play) seems to best way to avoid this)
The making potions trophy is glitchy, it took me well over 30 potions for it to pop.
The strength of alliance trophy is glitched, I go it with a friend and an AI player, my mate had to join a random public game to get his to work.
Various other problems like disappearing weapons, sound effects going loud and staying on, headsets distorting until reset also plagued this game.
That said it was a fun co-op game for the first two play throughs but running through a third time for the platinum became tedious. Its worth what I paid for it