I'm not sure if the OP has made his decision yet, but I built a PRS rifle for my GF using an Atlas several yrs ago and I never took it off the bench to a match.
The cases would get stuck in the bolt face while trying to eject unless you slammed the bolt back. I was sent one of the Heavy Duty ejectors at no charge but I didn't like the idea of not being able to pull the bolt without tools. I also wasn't confident it would fix the issue because even with the bolt out of the gun, it took quite a bit of force to tip a case out of the bolt face. I didn't want to chance her having problems at a match, plus I was out of time so I ordered another Impact to match the one I had run the year before and never looked back.
I recut the barrel before the new ejector arrived, so I don't know if it would have fixed it or not.
The action appeared really nicely made, especially considering the mid level pricing, but the nitriding had the roughest texture I've ever felt. You can hear the grating noise in the vid. The flutes on the bolt were very sharp also. Enough so that the bolt would drag the next cartridge in the mag back and forth and leave deep scratches in the case. I always kind of thought the rough nitriding played a part in making the cases stick in the bolt face also.
Anyway, Impacts are king in the PRS world. You can walk up to any staging area at a 2 day match and find more of them in 1 spot than you'll see Kelbleys in an entire year.