It's a great game. I've played through it three times, and intend to pick it back up sometime within the next few months. At the moment, I'm trying to juggle about five other games, while simultaneously working 45 hours a week and completing my band's new CD.
One of the coolest elements about this game is the nearly constant stream of movie references. Nearly anybody with a brain can pick up on some of them (the "Die-Fighter" ships in a later level) and some require a much nerdier base of knowledge (a shark creature named Gran Bruce is an homage to Jaws, considering that the animatronic shark from the first movie was, in fact, named Bruce). Any movie nerd will friggin' die over this game.