I fell into the modular concept idea of the Sig P-250 and purchased one in .40 S&W, it was my first "plastic" gun, I was very disappointed with it!
I have heard others that love it, but my particular gun would not empty a full magazine (came with 2 and tried them both) without a ftf or fte, and I didn't like the way my hand always seemed to be on the mag release button.
Not bashing Sigs, I have a P-226 and P-220 that are extremely reliable. Just one man's experience!
I swear, by my life and my love of it, that I will never live for the sake of another man, nor ask another man to live for mine.