Apart from the fact that Xona guys are lovely people who put a lot of thought into making a shmup that will please shmup players, it's a great game. I'm sure Matthew and Jason won;t mind me saying a played a preview version of DZF a fair while back, and it was bloody brilliant. I love a bit of (poorly played) Double Play on the Raiden games, and DZF gave me just what I wanted as a fan of Double Play.