The rotors work perfectly and combined with the brake pads my brakes are finally quiet. Bite and pedal feel have improved a lot in my car and I finally have confidence in my brakes again. I would have preferred a version of this kit without holes, but those weren't available at the time. Although the drilled ones look good and I won't be using them for track driving, cracks shouldn't be a problem. For the money this set really can't be beat (I've been trying to find a better deal for the past 2 weeks) unless of course you can find a non-hole version for the same or lower price. BTW, this was not an exact replacement for the OEM drives on my machine (2007 Galant Raliart). The standard rotors had two set screws, these rotors have holes for two set screws, but only one hole actually fits. This is not a big problem as only one mounting screw is needed.