Downloaded about a week ago - Completed last night (did the last 4 missions or so in a row, was damn eager to find out what happened at the end)
The level difficulty goes up at a really good pace (though I did find the final boss fight a bit too straightforward) - All in all a fantastic, must-have game that everyone should play!
Awe-inspiring when you think you've no chance and take a stab at stuff you're fairly sure won't work but then does
Very nice graphics - and a really funny storyline to keep you entertained during more troublesome levels.
Get it.