I bought the OZ9-STD-B-B for just under $1400 right when I had decided to get back into Glocks after 30+ years. I don't know why I bought it, but it seemed like a good idea at the time.
And it was.
The Glock style trigger is one of the reasons why I sold my G17 back in 1988 and did not look back. The other (and biggest) reason was the grip angle. I was not interested in putting in the time to learn how to shoot well with it. The OZ9 speak to both of those and removes most of my previous objections.
The trigger still has the safety in it, but the shape of the trigger and the quality of the pull makes all of the difference here. Mine breaks right around 4 pounds and is pretty clean.
The angle of the grip is perfect for me, but what I have grown to appreciate is the shape of the grip. It sits in the hand very well for me, and the RMR's green triangle comes right to my eye when bringing the pistol up.
My pistol was included in a serial number range that Zev identified for new triggers. I sent mine in, and they replaced the trigger. The magwell that came with the pistol was out of spec and would not allow the included Magpuls to seat. Zev replaced that.
One thing I have noted is that one of the included Magpul mags appears to be causing the extraction of the last round fired to be weak. As I looked at it, it appears to have grooves worn into the sides of the feed lips. I have slow mo video proving that this can be recreated with that mag. I have let Zev know and will further document the issue.
The best part about this pistol is the possibility of changing the grip out to a shorter or longer grip as necessary, and it requires no effort to do so. This is a brilliant design that provides for a stable, solid handling pistol. Much better than the Sig in my eyes.
Hope this helps.