whats your proffered cal. for a hand gun?
.45ACP hands down...
.45ACP's will never let you down, just make sure you know how to handle those recoil or else you'll shooting the stars
9mm's are good if you know where to place those shots
that's why those Beretta's are selected as service firearms of law enforcers, they are not intended to totally stop or kill an attacker but rather neutralize them to dis continue their attack. But good shot placement will stop them for good.
I own a 9MM and they are fine, but once you mainly shoot .40/.45 or .44mag they feel small. The Beretta he is selling is a wonderful pistol and very well priced (plus they look badass) - I am surprised no one has picked it up.
Here is 9MM next to a .45 ACP