I have a RKBA hybrid (similar to crossbreed and comptac) and a desantis insider. I just got the RKBA in the mail yesterday but so far I like it a lot. It's more comfortable than any of the crossbreeds I have and the comptacs. The desantis insider isn't too bad for the price but it doesn't stay open to reholster easily and it can be hard to draw because of how low in the pants it sits. The benefit to the low ride is it conceals very nicely.

Bottom line is a good holster is a good holster no matter what gun it's for. You can get a crossbreed, RKBA or comptac for any gun and have a good, comfortable holster.