I like my shield 9mm a lot. Newer manufacture, the trigger is great. Not a pain to fire at the range (unlike my p3at which beats up my trigger finger). The shield has been so reliable I usually only cycle through my mags at the range. Carry with 7rd, add 2 8rd mags in a small carrier. For me I really want the manual safety.
I conceal carried a 1911 for a while, then a glock 20, and a compact all steel tanfoglio witness large frame. Ended up pocket carrying a p3at for the longest, although pocket carry is a quick way to gunk up a small pistol that already is on the edge regardling reliability...got distracted and didn't carry for some years.
It's just easier to carry something smaller and too easy to find an excuse not to carry something bigger.