Asalamualaikum,
Taurus PT 99 is similar to PT 92 with the only difference being that of adjustable rear sights which the 99 has.
The 92/99 is based on the tried and tested Beretta 92 model and it is actually a TOT thing rather than a clone. The machinery being used to manufacture PT 99s in Brazil are the same as being used to manufacture Berrettas.
If you are comfortable with large frame handguns, then the PT 92/99 is just the thing for you. It is reliable, accurate and economical all packed up in one.
I personally know people here in Karachi who are through with over 10,000 rounds with this gun without a single issue. The only FTFs/FTEs were attributable to bad ammo.
It is easily available in Karachi and the current ongoing rate is between Rs. 54k and 58k.
To get better rates, visit Mainsfield Street, Lucky Star and try Ammar & Co, Hussain & Bros, Pioneer Arms in particular.
In Clifton / Defence area, I would recommend Elahi Bux (opposite ICAP near teen talwar), he's the most reasonable. DAAD on zamzama is also good but expect a premium in his quotes.
Overall, you are going for a best seller and one of the most reliable handguns ever produced. It can take all sorts of loads and shoot'em.... meaning it's not ammo sensitive. With the necessary care, you can see this weapon do you good till the next two decades and with over 20-30k rounds.