i like mine. i just have one for now but will be getting another one. of course the bad thing is that they dont work when the ecu is connected to the laptop. they use the same serial port. i dont know but you may can on the gen 2 aem ecu.
programming them takes some studying. i have to relearn it every time. of course aem doesnt really want to have a manual to actually tell you how to program it.
mine does boost, throttle %, o2, fuel presure, oil presure, water temp, batt volts, speed, air intake temp, and i think thats it for now. i tried to get it to show o2 feed back % but it doesnt compute. the oil pressure is off too so i have to change the formula in the ecu part of the serial telemetry .