Regarding the PPQ or P99 for concealed carry:
I tend to advocate finding something you can *always* carry, first. Once you have that covered, finding alternative options for cold weather can be fun.
The PPQ and P99AS are slightly larger than a Glock 19. As much as I love them, they are a little chunky for year-round carry. With heavy clothes, it's considerably easier. If you wear heavy clothing often, these are great options. Still, I wouldn't carry my PPQ every day. My SR9c is considerably more comfortable to pack.
Currently Own: Beretta PX4 9mm, Glock 23 (Gen 4), Glock 19 (Gen 4) x2