Where can I start? There are so many good points about this game if mentioning a few minor negative points that there isn't an ideal way to start saying just how good this RTS title is and should satisfy critical demanding RTS fans and Tolkien fans alike.
Okay, here we go. This is a sequel to the first TbfME. However, unlike sequels this one does not disappoint and also gives you an experience that differs from the first game. If you liked the first one you will like this one better.
If you are after epic battles, you will be satisfied. If you are after gargantuan leviathans tearing their way through armies, you will be satisfied. Just try the Balrog, exploding from the deep, scattering everyone into the air. If you are after RTS gaming with some tactical thinking required and graphics/ animations to satisfy, then you will be glad you brought this. If you are after yet another Tolkien experience that stays true to its feel, add this to your books and DVDs.
This game has new factions based on the battle that takes place simultaneously to that between Gondor/ Rohan and Isengard/ Minas Morgul, the drawves, elves, rangers against Mordor/ goblins of the Iron Hills. The factions of the original game are present but in a more rounder form i.e. horselords of Rohan have combined with Gondor soldiers to form Men of the West. Spells are more awesome as are some larger creatures. Armies have more detailed bodies and varied bodies in units.
The ability to customize your heroes to fight alongside those of the story is a cool feature. You will enjoy this. An experience worth saviouring. Treat yourself to this, you deserve it.