I had one a few years back. I purchased it from CDNN. It had problems: the trigger wasn't straight in the frame, the rear sight wasn't properly dovetailed, staked, whatever, and the magazines that came with it were faulty. The gun malfunctioned due to the bad mags, and the rear sight had the bad habit of flying off the slide at random after discharging a round. I traded it in for another gun. I regret giving it up because it was the lightest recoiling 10mm I owned. Even more so than my S&W 1006 and 1066 and Glock 20. I think that was a testament to the overall design of the gun, warts and all, and the aftermarket recoil reduction system I had in the gun.
I "replaced" the 10mm Witness with a stainless steel .38 Super Witness. It's a nice gun. Accurate. Still, I miss the 10mm.