I got the compact model some years back when they first came out - before the polymer frame versions appeared. A note on that is that they still use an alloy sub-frame inserted into a polymer shell. The nice thing about polymer frames is they don't show age unless deliberately abused. I've got Glocks, Sigs, and FN's that show zero signs of handling and wear on their polymer frames, and the advantage is significant reduction in weight - a good thing.
The easiest way to see if the 1911-22 has a polymer frame is look at the serial number. Those with alloy frames have it right on the surface and those with alloy have it stamped into the alloy sub-frame nestled inside the polymer grip housing.
The 1911-22 is about 65-70% the size of a standard 1911 with the alloy frame version running around 14 ounces empty. It feels exactly like a miniature 1911 right down to the grip and thumb safety, and tiny spur hammer, and the diamond pattern real-wood grip scales. Field stripping is the same as well: Depress the recoil spring plunger and rotate the barrel bushing to release tension, then run the slide back to locate the tiny notch over the slide stop and push it out. Then the slide runs forward off the frame. The recoil spring with plug comes out, and the barrel exits the slide via the nose after the bushing is reverse-rotated and remove.
The gun is quite tiny, even by .22LR standards and smaller than the likes of a Walther P22 or Ruger SR22 by a good margin. While longer and taller, the 1911-22 is 6 ounces lighter and narrower than the Phoenix Arms HP-22, but then that's at a nearly 4X greater cost premium! The gun fits a man-sized hand surprisingly well, but the web is cramped a bit, and it doesn't take much for web-skin to find its way between hammer spur and thumb safety tang. The magazine is quality built and does an excellent job of supporting the little pistol's reliability. In all the years I've owned mine I don't remember it ever having a malfunction, and just like it's grandpa version, the Browning has a proper last-round slide lock.
In every way the Browning 1911-22 is "better" than my P22 which does have an alloy chassis inside polymer grip shell, but not for that reason, but because it has everything you "need" in a truly compact package - again just like it's grand father, being super narrow really enhances the ability to tuck the gun in to the body so it disappears. The Browning field strip is also superior to the P22 an S&W M&P 22 handgun which both use a funky take down lever than must be rotate and pulled out, then the slide pulled all the way back and lifted off. Quite simply, the Browning is exactly like owning a full size 1911 which must be experienced side-by-side with all the other types of .22 pistols to be appreciated!
Shooting is easy and fun, and perfect for teaching kids or non-shooting spousal units. The gun is accurate and very fast-shooting. The 1911-22 makes an excellent SD carry piece for those so inclined.
My own "issue" is the price. The little guns aren't cheap and as such, mine tends to get less shooting time than my much less expensive, more "expendable" .22 pistols.