I have a 1911-22 compact and two 1911-380 compacts with auxiliary 22 slide assemblies. I've had various problems with them, but they are easy enough to fix. I trust one of them enough to carry, and the other is getting there.
Since the 22 is blowback and the 380 is locked breech, recoil is very similar in both calibers (and very mild).
I have 22 conversion slide assemblies for both of my 380 frames
I have a 1911-22 with aluminum frame and two 1911-380 with polymer frames. I much prefer the polymer. Possibly because I am 81 years old and really appreciate the light weight. I expect both aluminum and polymer to last my lifetime. As an aside, the slides are steel.
As a second aside, it...
Almost all of the Browning 1911-380 stovepipes are due to improper spacing between the magazine feedlips.
Next most common is loose extractor screw.
Third is extractor a couple of hundredths too long. All three are easy to fix.
My two primary carries are a 637-2 J-frame lightened up with a titanium .357 Mag cylinder and reamed for 9x19 (147 gr).
And a Browning 1911-380. I prefer either over my Kimber Micro 9.
I've got a Browning 1911-22 Compact and two Browning 1911-380/22 Compact Convertibles. All required some work to make them dependable. Different problems, different solutions. I really like them and use one of them for occasional carry. My only long term complaint is the poor quality of the...