I installed mine today. In the end it went well. The only issue I had was that when I separated the halves of the throttle, I pulled the ribbon cable out from the bottom of the PCB. So that made assembly extremely tricky. Mine is an early model Warthog, so I don't know if they have since lengthened that ribbon cable, but I had to assemble the right side and then re-attach it from the inside by going in from the left side of the throttle half. There really wasn't any slack in my cable, so I don't think this was avoidable for me.
But it's up and running, and it works great!