Pros: Fun, good graphics, detailed mech's, harkens back to old school mech games.
Cons: A little slowpaced, sparse environments, easy single player campaign

I am working my way through the single player campaign, and this is a good game. If you are looking for a fast paced shooter, keep on looking. This is a mech simulation, so expect it to be a bit slower, but more realistic.

UPDATED: Since my last review I have started a squad and gotten some friends to join me on a mission (you can have up to 6 teammates versus up to 6 adversaries). This made all the difference. Playing as a squad brings out the true depth of this game. You work together using different Hound classes to implement strategy and tactics against computer controlled Hounds or other people aligned with a different country.

Given the massive amount of customization available you will never see a Hound built out just like yours. This also allows you to scale the challenge and difficulty to your own level. If the missions are getting too easy, you can change your Hound to have lighter weapons, thus making it harder to defeat the enemy.

This has become the stand-out 360 title for me as far as online experience goes.