I have a KZ full size and have been shooting it for a little over two years now. Out of the box it did not run smoothly nor did it shoot with consistent accuracy. In every 50 rounds thru the pipe using manufactured ammo, it would jam or fail to eject two or three times. This continued for the first 600 rounds. Then, it smoothed out and has run very well since. I'm not having the jam & eject problems anymore. Accuracy has improved, also.
I enjoy shooting this 1911. The polymer grip fits my hand well and I like the fact that it can carry 10 rounds in the mag plus one in the pipe. Given my shooting mechanics, it shoots accurately but is not my most accurate 1911.
If I were to carry, I would carry my Kimber CDP II Compact instead. I doesn't hold as many rounds in the mag, but it has a melt treatment, is more accurate then the Wilson KZ, has an internal extractor, cost less new than the KZ, and operated flawlessly right out of the box.
I guess what I'm saying is the KZ is a decent handgun and supported by Wilson. But, I'd compare it with a few other compacts just to be certain you have the one that's right. In the process, you might save some money and still accomplish your goal of obtaining a carry piece