I hear you on the polymers. Never really my cup of tea. I got interested when a friend let me try his Glock 21 in 45. I shot well with it. I have a G19, but actually prefer the older version without finger grooves.
I was turned off long ago from S&W autos, because the 659 I tried had a horrendous trigger. I was barely 21 and at the time, I didn't even know what a 1911 was!
Now that my wife is shooting, we each tried my brother's Shield. Although he/I are close in age, I have been shooting handguns for much longer and they were always steel frames. I really liked his full size M&P in 40 and now I have a Shield to try out for myself.
During my research of the Shield, I found the 3913 and am intrigued. It's not as small as the Shield, but I carry a 4" 1911 without much issue. My other carry is an all steel Makarov, so the Shield fills a spot as a Compact for me. Still, I'll see if I can find a 3913 to play with...though they don't look cheap.