I have a Ciener for the 1911. It is the "Platinum" model with adjustable sights. It has been 100% reliable with just about any ammo, but seems to like ther Remington "Golden". Despite what I have read, this unit on my Kimber or one of my Wilsons is very accurate.
On the other hand, I bought one of the conversion units for my son for his G22. It is crap. From day one, and we have tried several different rounds, and PLENTY of break in time.... Still crap.
Called Ciener. The only fix they offered what for my son (LEO) to send his G22 (duty weapon) to them for 4 weeks so they could make it run. You BETCHA!
I have heard a lot of positive, with a small number of negative experiences with the 1911 kits, but almost nothing but negative with the Glock kits, and the same for the customer service offered to fix the Glock kits......
I am keeping my 1911 unit, but doubt I would ever buy another after the phone conversation I had with them about the Glock.