I am a big fan of the SIG P250. To me, its trigger feels like a skillfully customized double action revolver. Add the highly flexible modularity, and it should be a big winner. Alas, I think it suffered from 1) bad marketing, 2) early reliability issues (rectified in v.2) and 3) the industry trend (toward striker-fired guns).
I was able to acquire several caliber/size change kits at about $219 each. It's like I have multiple guns! My wife really loves the .380 ACP kit in subcompact frame in particular. The trigger reach and grip comfort are excellent for her small hands, the recoil is minimal, and she has confidence in the very smooth, yet comfortably heavy-enough trigger (light striker triggers found on Kahrs and P320's concern her quite a bit, given that she is not a gun nut and doesn't spend hours and hours shooting and training with guns as her husband does).
For her, it's like a small, lightweight, and highly tuned 38 special revolver that has a 13-round capacity (ok, 380 ACP is not quite 38 special, but close enough). And lower recoil.