I've had my Sig Sauer 1911 22 for a couple of months now. Function with CCI Mini Mags and Winchester Super X has been flawless. My only complaints have been poor finish on the slide and cheap sights.
As seen in the first pics the finish is disappearing on multiple edges of the slide.
The slide is cast aluminum so blending and rounding was easily done with 320 grit paper. I was surprised how rough the surface was once I bead blasted. I went with semi gloss HK black DuraCoat.
I replaced the rear sight with the original sight from my Wilson CQB and will replaced the front sight with a FO soon