Not an appliance tech, but I do fire inspections on exhaust hoods in restaurants. I use mine to send pictures to our repair guys so that they can see exactly what's wrong with a system and get someone a much quicker quote. I also use it for the GPS ability and the scheduler. I'm pretty sure I can do more, but I've only had it for a couple of weeks, and at this point the phone is still smarter than I am Thanks to this place, I'm slowly getting the upper hand.