I had an Ar-24, the fit and finish was really good, not much play, accurate in everyones hands except for that of my own. The problem I had, that applies to any pistol that is a Tangfoglio (the Tangfoglio's are modified CZ copies AR-24's, Sphix's are Tangfoglio copies) copy, is the "hump" on the grip. I have very fat palm swells and that fat palm swell sits right on those "humps". Sigs, Hk (especially the USP .45 full-size), Berrettas, Glocks, 1911's all fit my hand very well, these Tangfoglio's do not.
Hold the pistol your hand in the store, before you buy it.