I got a JP trigger certificate off of a prize table recently, and redeemed it for the EZ fire control kit with Armageddon trigger. I have been running Geissele SD-E triggers exclusively in all my rifles for the past couple of years, so I'm really fond of the straight trigger bow. The Armageddon trigger is my first experience with JP products. Everything about this trigger is adjustable: take-up, sear engagement, safety engagement etc. It is not a drop in trigger but if you are patient and can follow directions it is really pretty easy to set up. Make sure you watch the videos and read the directions and pay special attention to the part about set screw adjustment. Specifically, practicing several times before applying the Loctite. Once you apply the Loctite, you have about 30-45 seconds before that stuff is set like concrete.
I have made a couple of range trips so far and fired a few hundred rounds with the Armageddon trigger. It is an awesome single stage trigger with a very short travel and reset. It breaks very crisp and clean and I like the feel of the roller design. I can't find anything I don't like about it, but I have not tried any rapid fire strings or doubles with it yet. I may eventually put this in my OBR heavy just because it seems like a fitting trigger for a precision setup. The minimal travel and clean break makes for some really tight groups in my experience so far. JP did a good job on this trigger and it makes me wonder why I have not tried JP stuff before now.