Factory Taurus magazines WILL NOT work in Beretta magazines, and vice-versa, simply because their mag cut-outs are different than Berettas. Although the differences are subtle, it is still enough that neither magazine will lock up with the mag catch on the opposing pistol. However, Triple K did make some magazines that had both cut-outs, and would therefore function in both guns. I have tried some of these in my Beretta, and they work fine. I have even taken a factory Taurus hi-cap mag, modified the cut-out, and it also worked/functioned flawlessly in my Beretta. I'm not sure of the legality of this, but I really don't care.
Anyway, I have owned both Taurus and Beretta 92s, and I think both of them are excellent pistols. The Taurus pistol isn't machined or assembled as well as the Beretta, but this is of no concern because I never had a problem with the Taurus I owned. It would feed and shoot any ammo I tried, and was combat accurate. Actually, I kind of prefer the frame mounted decocker of the Taurus, which allows the pistol to be carried cocked-and-locked. Given the right price, I wouldn't hesitate to buy another Taurus.