Living in Houston, where it already is hot and humid, the Auto Start/Stop is a total fail. I now have a reflex habit of pressing the Starter when I get in the truck, and immediately press the button to defeat Start/Stop.
If you leave it enabled, and come to a stop where it shuts off the engine, you lose power steering (which admittedly isn't a huge deal), but the real killer is that you lose the A/C compressor. The fan runs, but no A/C.
In Houston this is merely unacceptable. I know you can defeat the Start/Stop by having Max A/C, but I paid to have a tech-advanced truck and I like using the Auto Temp settings. I absolutely hate this dumb-ass feature.
I am having the opposite problem... to most I guess this wouldn't be a problem. Mine doesn't work it shut off and started once when I first got the truck and since it won't shut off at a stop light. I have had it at Ford and so far they can't fiqure out why it is not working as all the required peramitters are there for it to work.
I believe these two "issues" might have a lot to do with each other assuming that everything is working the way it's supposed to.
Most auto off/on systems will only work to a point where the vehicle, based on the electrical draw, will automatically turn back on even if you haven't moved.
The AC is slightly different because unless your systems temp.is set to auto, it won't hold a temp and the engine will only turn back on when it needs to charge the battery again because of the electrical draw...not because it gets hot/cold inside for the driver.
I own two other vehicles that have this feature and the Raptor will be the 3rd. It definitely takes getting used to because my initial reaction is to think it's a stall. I do turn it off in stop/go traffic because it gets annoying.
I also used to think something was wrong with this feature and/or there was a problem with the car because it would shut off sometimes, but not others, and seemingly turn off at a stop light, but turn right back on within 10-15 seconds while I was still stopped at the same light.
I learned later that it had to do with electrical draw and in hindsight remembered Having lots of stuff on, I.e. Headlights, radio, nav, heated seats, etc...
I was talking to a buddy of mine that also owns a G2 Raptor and it all came together that auto start/stop systems work very similar to each other regardless of brand. YMMV