Let's look at your constraints:
I mostly want one for reputation, price, reliability. I want something that won’t jam constantly and won’t break. Something I’ll be shooting a lot for years. Don’t have funds to buy guns constantly.
In this and your other threads, I'm seeing G17, G19, P320, VP9, USP9c. Of all of the pistols mentioned so far in this thread, the only one I own is a Gen 4 G19. So take that into account when reading my comments. I also understand from other posts that you are fairly new to semiautos (or maybe to handguns?), and that renting pistols is a chore for you. Is that all correct?
Assuming that it is, and knowing what assuming often gets me, I'm still going to suggest that you spend the time and $ to rent a few guns. Call the range ahead of time and make sure they have guns you want to rent. From what I read, all of the guns you've named are perfectly serviceable guns, from perfectly fine manufacturers. While any manufacturer can produce a lemon, I'd expect any one of the listed pistols to go thousands of rounds without worrying about breaking one or wearing it out.
Since this pistol is intended for carry (if I understood correctly), my selection process would go something like this:
- I'd be leery of the P320. It's still pretty new on the market.
- I'd also scratch the G17, and the VP9. I'd prefer to carry something closer to the G19 in size. I'd also add Gen 3 to the list. They're still awfully popular, and I have to figure that there's a reason.
- I'd add the S&W M&P 9c, 2.0 and the CZP10c to my list. Those two are almost identical in size, weight and capacity to the G19.
- Finally, I'd remember that the difference between a $600 gun and a $1000 gun is a holster, belt, mag pouch and about 1000 rounds of ammo.
ETA: I own a Gen 4 and I've held, but not fired, a Gen 5. Some folks are saying good things about the Gen 5, but the feel in the hand wasn't enough to get me to trade in my Gen 4.