Berettas were made on Beretta machinery for the Brazillian military and police. When the contract was up, Taurus, who made only revolvers up to that point, bought the Beretta factory, and under license, produced their pistols. From that point on, the Beretta and Taurus pistols have developed along different lines.
Rather than go with the slide mounted decocker, Taurus later modified their frame mounted safety to ALSO function as a decocker. Up is Safe, down to horizontal is Fire, and if you depress it below horizontal, it decocks.
I've carried a PT-99AF for 15 years. Mine is the model just before they added the decock feature. The safety is just up for Safe, and down (or horizontal) for Fire, no decock.
Never a problem except with some junky Ramline mags. With Taurus mags, no trouble with any ammo, including 147 gr Hydrashoks. In fact, with Taurus factory mags I have NEVER had a malfunction, including the time the entire Civil Air Patrol shot 3000 rounds through it in one afternoon. I think that got it broken in.
The mag catch hole is larger on the Taurus. The Taurus mag will function well in the Beretta, but the Beretta mags smaller mag catch hole will not engage the catch on the Taurus. You can enlarge the hole and it will work well.
The original Goncalo Alves wood (aka "South American Walnut) grips were beautiful, but without checkering as slippery as a greasy ice cube. I put a set of Pach's on it. I also switched the mag catch around to the right side, so that I can drop the mag with my right hand middle finger without changing my grip.
The guy that said Taurus is junk, well, he should take a little closer look.
BTW, when I went into the store to buy a pistol, I had the folding green stuff in my pocket for the Beretta 92. While handling it, I commented to the store owner, the only thing I don't like is the slide mounted decocker. He suggested I look at the Taurus 92 and 99. I liked them, and bought the 99... I liked the adjustable sights, but did not have to adjust the sights, they were right on.
Would I buy another Taurus? Yes, and I would look at Taurus first.