There are an awful lot of sub-compact (3 to 3 ½” barrel) 1911 style pistols on the market that are good, bad and indifferent. But they all share the problem of having a short recoil spring tunnel, which requires cobbling up some kind of recoil spring system – often employing two springs and/ or buffers which shorten the space for the recoil spring – that is too short already – even more.
Since the slide is shortened by approximately 2 inches, the barrel is dropped at a sharper angle, and this can effect feeding.
The magazine was designed around the .45 ACP cartridge, with an overall length of 1.275” where the 9mm’s length is closer to 1.095” to 1.169” depending on the bullet used. Colt got around this by putting a filler in the back of the magazine
The Colt Commander series of pistols, first introduced in 1949, conclusively proved that the platform could be adapted to work with the 9 x 19mm Luger cartridge, but the Commander is approximately 1 ½” longer then a sub-compact with a matching lengthened spring tunnel that doesn’t require a two-spring system to work.
Our gunsmithing forum frequently hosts threads posted by new owners with sub-compact 1911 .45 pistols that are having various reliability problems. Of these, Springfield Armory products seem to be the most common. But in all fairness they probably sell the most pistols.
Considering all of the variables – and there are many more then I’ve brought up here – I would repeat that it would be advisable to be sure that the particular example you are looking at works reliably – and with all of the magazines. Do use this forum’s search feature and read the previous discussions on Springfield Armory Micro-Compacts. You will find that Tuner knows his subject very well, and on this forum they usually carry a considerable amount of weight. I think that he would agree with me that a Commander length gun is a far better choice then any of the sub-compacts. Another possible option is a smaller Officers Model's frame matched to a Commander length slide.
What you buy is your business, but you did ask for opinions…