I picked up the 30S a little while ago. It's small enough to conceal well IWB, but is large enough that it shoots well and is not punishing. I like it's capacity, it's reliable and it will shoot +P rounds for those who want and can manage them.
For times I want something a little smaller or lighter, the 27 has been great. It's recoil is surprisingly low for a smaller .40.
I have an XDS .45 I use for pocket carry (it's at the upper end of that spectrum), but am considering replacing it with a Shield, as it's not feeding reliably. I'm getting it back Monday and am told it's functioning properly. I'll put 500 or so rounds through it before making a decision.