I played it for like 30 minutes, got stuck at stopping a landing and quit. It's quite good except that I can't fucking see where my cannon shells are landing.
It's pretty fun but not worth full price, the story is kinda predictable and short and the "secrets" that you find are just photos and scenes from the game that you can watch from the menu. The gunplay is pretty solid and fun though, I can recommend dual fastshooters.