Same here, mine worked perfectly on the first try. I did have to use another 12v charger I had in my "misc electric crap" box that every dad has since the one that came in the kit had a euro plug.
Just did it, super easy and only took maybe 25 mins. Didn't fully trust the provided software so dug up my old gateway laptop that somehow still works. Zero issues following the instructions posted a few pages back.
Truck is currently running perfectly with the cloned ecm, I'll be sending...
Took my '21 Gladiator in yesterday morning for the inspection, got a call at 1500 saying the inspection and pump install was completed. They apparently had some in stock and was able to knock it out immediately after the inspection.