I bought mine back in March, but haven't had to use AE to troubleshoot my truck. I've used it to help troubleshoot another members truck, and without it, we would of just been throwing parts at the truck.
I'm not the most computer literate, so there is a learning curve for me to use the software, but the more I've played with it, the easier it gets.
I'm not sure if you've read this thread, but it helped me get some insight of the capability that AE can do.
AutoEnginuity Tips or Tricks
Sorry I can't be of more help, but until I run into a major issue, I can only play with the on-board test and actuate/command outputs.
2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB