I have owned a 10mm Witness for about a year and a half now. Mine has the wonder finish. The ergonomics of this pistol are phenomenal, and accuracy is quite good. I had some issues with it at first. To begin with, the pistols are grossly under sprung. A calibration spring set from Wolff solved that problem, mine ended up with the 20# recoil spring and an extra power firing pin spring. One of the problems I had with mine was ejection of the spent cases. Mine would send the fired cases into low earth orbit. The 20# recoil spring and the shortening of the ejector by almost .100 got them back into the same zip code. I changed the mag springs to the Wolff +10% and reliability in now near perfect. Haven't had any reliability problems since. Overall, I give them a "buy" reccomendation.
Savage