Ammo is pricey...and the round stays on the radar for the ATF. It can penetrate all body armor prior to 3-A...If I remember right. So - I wonder how common it will be...and for how long. All unknowns. 9mm is the most successful, and plentiful round for handguns - in the world. Available everywhere - and in more configurations than any other round....and - pretty inexpensive for most of them. I am a Springfield fan. Hs the "Glock style" of construction - polymer/steel combination. But - more safety features, lower price usually. I have owned Glocks - and carried them. Lots to like - and lots to hate. I can't stand the grip angle, but- that is me. The Springfield approach to grip angle is a compromise angle between the almost right angle of an Govt 1911 - and Glock. Feels more natural and the pistols comes to point faster for me. And the recoil is very manageable. I recommend that you go to a range that rents guns - and try a few. YMMV.....