Admittedly, I watched the MST3K version of this, but it's not actually too bad outright, at least compared to others which deserve my cinematic hatred.
The story centers around a troubled girl wrongly sent to a "reform school" called Girls' Town. Along way, races, redemption, and wackiness (unintentional) happen. The story and acting are a little flat, as is the action. However, the entire thing is actually entertaining to a degree if you are absolutely bored.
Overall, just a simple sub par 50's flick, but far from the worst movie ever made, with some bright spots in the movie (The Ave Maria sequence was good for me).
If you get a chance to watch the MST3K version, you won't be disappointed. By it self, not so much, but I can think of worse methods of torture ("Spiker" anyone?).