Very easy to use. Just follow the directions. Received the BullyDog BDX one evening and had my truck programmed the same evening. There are several settings. I only chose a couple to begin with, but noticed the extra power immediately. Ibis will it set in economy right now, but I haven't noticed a tremendous increase in mpg yet. I mainly got it for towing my camper which is 37' bumper pull and weighs 8800 pounds in the dry. So far, I am very pleased with the BDX.
short on a couple details.
I bought this mostly to monitor EGTs and the DPF regen. Overall it works fine for this, but there are some little things that could be better: Slow to boot up. Freezes up occasionally. Can only adjust monitor with the engine running. If you select the analog gauges you cannot adjust the range of the dials so some needles will never appear to move. Oddly enough there is no PID for oil pressure (don't know if that's a Ford thing or an Edge thing)..
I'm saving so much gas and way more power
I had installed my headers and intake about a year ago and went from 17-15 mpg to 15-13 mpg but had good power. Now power is amazing pulls hard, only thing is the price I feel like Unichip should have dropped the price on these but auto anything was the best deal and fast shipping and great costumer service, they emailed me right back with any shipping problems.