I just completed a brief test of the Walther PPS M2, and liked it a lot. Pretty nice trigger, decent sights, handles well considering the short butt.
I considered buying one - it would be my first polymer, striker-fired gun - but got a SIG P938, instead.
I'm an old, guns-should-be-metal, single action, manual safety stick in the mud, and the SIG just feels right.
Despite horror stories of 7#-10+#, gritty triggers, I'd say mine, with a couple of hours of dry-fire, is a smooth 6#, the night sights are a nice touch, and it has a solid, quality feel.
The Kimber Micro 9 has the same relationship to their Micro .380 as the P938 does to the P238, and I considered the Kimber, but it doesn't come with an ambi safety, while all of SIGs various P938 models do.