I stumbled across this game because it was on sale and never regretted buying it:
It is a fun and fast paced shooter with the very entertaining aspect of being able to destroy and rebuild most of the level interior. The weapons are very satisfying to use, with the magnet gun being almost too powerful.
The story isn't much to write home about and has its flaws, still it kept me interested till the end. I even bought the DLC after i finished the game, because i liked it very much.