I had one chambered in .40 S&W. It was the softest shooting .40 S&W pistol I ever had my hands on. Non-tilt barrel & near inline feeding from the mag meant it never jammed. The rotating barrel design radially dissipated a portion of the recoil energy, less muzzle flip.

Sold it because I trimmed down my semi-auto handgun calibers to .22lr (practice), 9mm (primary), and .45ACP (SR1911 for fun).

I've been itching to get a PX4 Storm Inox 9mm.