I recently purchased one and absolutely love it! I have 500-rounds through it now without a glitch. I've shot WWB, UMC, Blazer Brass, and Speer Gold Dots without issue. Ultra reliable and small but the recoil when shooting Speer Gold Dots is similar to shooting full-house .357 Mag through a J-frame. As for fit and finish, second to none if you ask me. I simply love this pistol and as for service life, I'm sure it will hold it's own so long as you keep the recoil spring changed on a regular interval.
Buy with confidence, the problem with Kahrs from what I've read during my research was involving the early polymer framed pistols; however, their all steel pistols are solid. I was very skeptical until I actually purchased so you are wise in conducting your research.