Hello. For roughly 4 decades now, my autoloader of choice has been a single-action such as the Browning Hi Power or 1911. In the '80's I coughed up the then high tariff for a CZ-75 since it appeared interesting, had gained the blessing of Col. Cooper and allowed for Condition One Carry (cocked-and-locked) if desired.
During roughly this same time-frame, I became a police firearm instructor, which necessitated my being very familiar and competent with other than single-action autoloaders or double-action revolvers.
So, I began rigorously working to improve my skills with SIG-Sauers' P220 and P226 DA/SA pistols as they were very well-represented within the law enforcement community as well as Glock's line of handguns. I found that at least with some of the DA/SA automatics, the transition from DA to SA just was not the "monster" described by some scribes, which prompted me to try other than single-action automatics; with the money spent over the years, I'm not sure if that was a blessing or a curse...
The most recent of this seemingly never-ending line of pistols to shoot is the 9mm PX Storm from Beretta. Mine is the "Type F", IE: conventional DA/SA with the slide-mounted thumb safety. The pistol is locked breech, but uses a rotating barrel system to accomplish this. It seems to work well at least in my initial range session. The gun functioned flawlessly with the 435 rounds fired.
Here is a picture of it next to the very common Glock 17. Hopefully, this gives folks at least an approximate idea of its size.
I tried this pistol with a six different loads. From left to right:
DAG 124-gr. FMJ, Winchester Ranger 127-gr. +P+, handload using Speer 124-gr. Gold Dot, a discontinued Corbon +P load using the Hornady 124-gr. XTP, Speer 147-gr. Gold Dot, and Remington 147-gr. Golden Saber. These all fed smoothly and flawlessly.
I fired no further than 15 yards in the initial range session. It was windy and the 25-yard pistol range was occupied. I fired this group while seated and with wrists braced on sandbags. I was trying to gauge the pistol's inherent mechanical accuracy...and was very pleasantly surprised.
In short, I found the pistol to be extremely comfortable, 100% reliable...at least so far, and surprisingly accurate.
If interested in a considerably more detailed review, look here:
Shooting the Beretta PX4 Storm 9mm