BillBloggins, welcome to the LNL AP. I'll echo what many have said, it's a fine press and you will get the feel of it in no time. You will be able to tell when the primer is not right. And given the retainer spring, it's a simple thing to remove the case and check the primer when you think something isn't right. Yes, it slows you down, but it's better to check than have it go around, get a bullet and then have to be pulled.
As said above, if you encounter any glitch, stop, pull the cases off the stations, figure it out and then continue.
As some, I started on a RockChucker single stage, I moved on to a Lyman turret, and then I moved to the Hornady Projector, and then the LNL AP. Now, I have two LNL APs. I load 9MM, 380 ACP, 32 ACP, 45 ACP, 40 S&W, 38 Spcl, 357 Mag, 45 GAP, 45 Colt, and 300 Blackout. All on the AP. I load 223 Rem, 308 Win and 30-06 on a combination of the RC and the AP. I do the sizing on the RC. Process the cases for primer pocket crimp, trimming, etc, and then go on the AP for priming, powder, and bullet seating.
I load and shoot around 4K rounds a year across the various calibers. 9MM accounts for half of that.