I like the song but I find it too redundant. "Inside Out" is one of my personal favorites and it works really well as a single but "Criminal" is musically more complex and also works but I voted "IO." I don't get why "Trip To Your Heart" and "Gasoline" aren't getting any love, especially the former. It's such a trance-like, beautifully soft-spoken song.
She has a poll on her Facebook to choose her next single, with "Criminal," "Drop Dead Beautiful," and "Inside Out" as the choices. Their rankings are 1, 3, 2 respectively.