I've come full circle back to the M&P9c. I had an M&P9c for a couple of years and sold it to buy a Glock 26 after drinking the Glock kool aid. I wound up selling the 26 because I just did not like it that much. I decided to then buy the full size M&P to try out. I love the full size M&P but some times it's to big for ccw. I bought a bodyguard 380 for those times. But I just don't feel comfortable with the 380 for protection ( & not sure on reliability) so I have come full circle and bought another M&P9c. I still have the Full size and bodyguard but the 9c is my baby come home again.
I've gone through a similar process myself...except that I bought a G23, and omitted the BG380. I plan to carry the 9c, and I am looking for a M&P 45 FS for the house. When I can find one, that is...they are rare these days!
I did the same sort of thing, bought a 9c (except I kept mine), tried a myriad of other carry 9's, and found that I always went for the 9c when it mattered. All those others have come and gone but the 9c remains.