I bought these two; the black is a 320 F 9 RX while the FDE is a 320 C 9.
I took them to the range this past Sunday and fired two hundred rounds (100 124gr FMJ and 100 misc defense rounds) through each, including a magazine of rapid (as fast as I could reacquire the target) with ZERO malfunctions.
But, it was the accuracy which pleased me the most. I can tell you from this experience that, so far, the positive reviews have been proven accurate.
Both have earned a place in the safe!