I have a 22A and recommend them highly. I've also been down the conversion kit road; it had a bumpy start but ended smoothly.

I started with a Cienier kit that would not return fully to battery. I called Ciener and was greeted by the most arrogant recording I've ever heard. In short, it advised me that my call probably would not be returned because the answer to any question I could possibly have is on their all-encompassing (their descriptive) website. That site doesn't encompass failure to return to battery and since I wasn't sure I wanted to deal with a company having that level of customer service, I returned it for refund.

I then bought a Kimber kit. I was using it on a Kimber Stainless Gold Match II and experienced failures to feed, failures to fire, failures to extract and failures to eject. I sent it back to Kimber three times, the last two on my gun. It never was improved yet they replaced all sorts of parts in the kit and my gun. The fourth time, the replaced the kit completely. I shot it once - out of 100 rounds of the ammo they recommend, 74 failures occurred.

Finally, I bought an Advantage Arms kit. It looks exactly like a Marvel kit but costs a lot less. It even holds the slide back on an empty magazine like the Marvel. And it works flawlessly.

Personally, I think you ought to go both routes. New guns are fun but so is shooting 22LR ammo in a 1911!

Ed