I despise the auto stop/start in our 2018 F150. Not sure how much it saves on the EPA track but many owners have reported no MPG loss when switching off. Myself, I see it as nothing more than a liability. How much sooner will the battery or starter require replacement? What are all those stop/run cycles doing for engine wear? What if it doesn't start when I need it to? Does the extra stress it puts on the battery reflect in shorter alternator life?
If there was a clear, or better yet significant, MPG benefit we could talk... but there isn't.