I carry a Shield 1.0 in 9mm, and I find it easy to shoot, easy to conceal in OWB, and reliable. I think it was 275 with 4 magazines, a loader, and HP ammo as a promotion.
I bought 2, one to carry, and a spare in the truck in case I am not carrying.
I am thinking about a MP 2.0 with 3.6 barrel. I'm a little afraid of the weight as compared to the Shield with 9 rounds.