they did their homework when they made the 24/7. They did it with the intent on attracting police etc to use them as a reliable sidearm. I have put at least 600-700 rounds through mine with no issues and have used quite a variety of ammo with again no issues.
My Taurus PT-145 has about 5000 rounds through it and it's never had the first problem of any kind yet. I did have one round that needed a second strike to fire but that's easy enough with the Mil. Pro pistols. You just pull the trigger again (this time in DA mode) and you get your second strike. But I'm sure that was an ammo issue and not a problem with the pistol because it's never happened again. I love that pistol and it was a very reasonable purchase too. I paid $320 and got an extra mag. 10 + 1 rounds of .45 in a pistol you can hide in your hand is nothing to sneeze at either. I still carry that pistol for CCW pretty often. I have switched to my XDm .40 because of capacity but 11 rounds of .45 is plenty especially when you carry a few extra mags. Mainly I just like buying new guns and I'm using the .40 right now. I'll be holding onto both for quite a while.