I have the KSR9C and really like it. My opinion of the KSR9/9C is: I feel it a quality, user friendly, reliable, nice grip feel, and affordable pistol. They are somewhat easy to shoot, just need a little practice with the trigger (nice, quick response), and sight/target acquisition. The 9mm has light recoil, affordable, and ammo is usually in stock at stores. Also, the KSR9 is capable of shooting personal defense rounds (147gr. +P).
My advice is to clean your KSR9 very well (including the striker) prior to firing. There are several great cleaning instruction and review videos on YouTube.