Sounds like a good product to me. The variable outputs for heated gear is the feature that can make something like this cost effective. What I have on my bike now is a prototype that someone local built, but never got around to producing. Another feature to consider are outputs that are on all the time and outputs that stay on for a few minutes and then shut down (keep GPS going at gas station, but not stay on long enough to drain battery). Did you consider active overcurrent shut down instead of fuses?
It isn't the conditions its the decisions
Don't bring a motorcycle to a car fight