I paid 20 and loved it. It started out slow, but I ended up beating the game in one sitting. Fun game that requires timing and skill to become good at.
A few cons include, a few stupidly aggravating missions, needs maybe 1 or 2 more levels, and I hate the main theme but its played all the time.
Also, contrary to popular belief, I had a lot of fun with this games multiplayer. Me and a group of friends had some good laughs throughout.