I might be the only person that's not a huge fan of the AE trigger....
Don't get me wrong, it works fine. I have no problems shooting it accurately. It's nothing like my Geissele Hi-Speed, though. It's light enough at 3.5 lbs total (actually about perfect there), but the final stage (the "break") is not crisp. Not mushy, either, but rather a significant but smooth travel in the second stage. Combine that with the quarter inch of overtravel, and I'm just not a fan. My Geissele has a perfectly crisp second stage break with no noticeable travel before the trigger breaks, and essentially no overtravel. That's how a 2-stage should be. Don't want to worry you, maybe it's just my trigger that isn't great.
Edit: Spoke too soon. I had some time to play with the trigger a little bit more. I now have a very nice two stage trigger with a smooth first stage and a clean second stage break, almost as nice as my Geissele. I also understand how the trigger works a little bit better now. The angled screw is, of course, the sear engagement screw. What this screw really does is adjust the ratio of first stage to second stage.
Going clockwise, you will have a shorter first stage travel, but you'll most likely end up with a little bit of creep on the second stage. This is how my rifle was set from the factory. If you go clockwise far enough, you will have a single stage trigger like some people have referenced to. Be very careful setting the trigger to a single stage. This will reduce the initial sear engagement (engagement under zero load) and can make the rifle more likely to fire when closing the bolt handle or dropping the rifle.
If you adjust counter-clockwise, you will increase the first stage travel, but decrease the creep on the second stage. This can give a very nice, clean break on the second stage. If you adjust this far enough, you will lose the second stage and end up with a surprise break right off the first stage. To adjust my trigger, I set the adjustment until I lost the second stage, then came back clockwise until I barely had my second stage. I then came clockwise another 1/8 of a turn. This gave me a very clean break with enough second stage sear engagement for a consistent break. This adjustment does not affect the initial sear engagement and maintains the safety of a two-stage trigger. Of course, I still drop tested and rapidly cycled the trigger for a safety check, but there should be no issues since the full initial sear engagement is retained.