I like mine.
I had to grind the fingergrooves off the front gripstrap before it felt right enough that I could shoot it well, other than that, no problems.
I do have an accessory barrel with conventional rifling so I can shoot lead bullet reloads in the gun, I use the factory barrel for all metal jacketed loads and the accuracy is quite good though I wouldn't call it bullseye match grade accurate.
My spare barrel is either a KKM or a Storm Lake, I can't remember which right off the bat but it does shoot with finer accuracy than the factory barrel.
I have MMC adjustable night sights on my pistol.
I replaced the extended magazine release with a standard factory length release.
I use the 3.5lb connector and an NY-1 trigger spring and use standard factory recoil spring assemblies as the full length stainless guide rod and seperated recoil spring I have makes the gun shoot low at 25-50 meters.
If you like having as light on your pistol, these guns are tailor made for the purpose as they keep the lens of the light back and away from the muzzle so carbon soot doesn't build up on & obscure the lens and the muzzle blast won't pop the bulb if you are not using an L.E.D. lamp
At the time this picture was taken I had not yet ground off the finger grooves & the gun was wearing Meprolight adjustable night sights, probably go back to these when the MMCs finally die.