Since your going to ask:
It wouldn't feed, cycle or extract reliably.
Ammo used: Federal, PMC, Remington, Winchester, others.
Rounds fired: 600+.
Reliabilty: 1-2 failures per mag.
Mags: Ed Brown (inc those he sold me at retail to fix the problem), Wilson, Chip McCormick.
Same ammo and mags worked 100% in the two Les Baer I had at the time. Buy a LB and don't look back. Most accurate handguns I've fired (have had three).