I say that if you want a Beretta, then accept no substitutes and get a Beretta. That being said, you already own a Beretta 92, and the 92FS really isn't all that different, so you might be disappointed if you save up for one then buy it only to find that out for yourself.
Here's what I would do, go into the gunshop and ask to see both the PT-92 and a Beretta 92FS/M9A1, (most gun shops have at least one 92FS/M9A1 in stock) then make note of the differences between your 92, the 92FS/M9A1, and the PT-92. You may be surprised to find that the 92FS isn't all that different from your current Beretta 92, and perhaps that the PT-92 has more features.
After that, should you find yourself leaning towards the PT-92, then function test it, if all goes well, politely ask permission to field-strip the PT-92 and examine the internals. The owner should give you the go ahead, but if not, then take that as a red flag, otherwise proceed to take it down and examine the internals, paying special attention to the locking block (which has sadly always been the Achilles' heel of the 92 design in general) to insure that there are no cracks in it. If all is well, then go ahead and buy it.
In my experience, as long as you function test Taurus Firearms before you buy them, then you're good to go. Between my family and I, there are 5 Taurus brand firearms in my household, all of which have been 100% reliable, but I won't deny that Taurus has spotty quality control, so if you're going to buy one, make sure you check it first.
That said, you should honestly function test ANY firearm before you purchase it, regardless of the brand, especially if it's used, but if there is anything worse than Taurus' QA, it's their Customer Service, so while other companies will typically make anything wrong with one of their problem firearms right quickly and easily, Taurus tends to overcomplicate the process. So if there's one company that you shouldn't neglect to function test, it's Taurus.
One is a Beretta, building firearms since the 1500’s, the other a Taurus made in Brazil, a knock off of the classic Beretta. Really? Wait for the real deal, the original, Beretta.
The Taurus PT-92 isn't a knock-off, it's a straight up copy of the original (Gen 1) Beretta 92 with upgrades. Taurus actually bought a Beretta factory in Brazil complete with all the tooling, workers, and blueprints, which included blueprints for the original Beretta 92. Beretta had already updated the 92 at the time (I believe the current model was the 92B) and the patent on the original had expired, so Taurus used it as the basis for the PT-92, but made some changes to update the design.
A lesser known fact is that many of the features on the modern Beretta 92A1 originated with the PT-92. (Combat Trigger Guard, Push Button Mag Release, Extended 17 Round Magazine, Reinforced Heavy Duty Slide, all were standard features on the Taurus before Beretta introduced the 92A1.)
So yeah, say what you will about Taurus and their quality control, but at least know what you're talking about before you go making ignorant statements about their firearms being knock-offs based purely on supposition.
