With my 2016 GTI, I don't have that and boy am I glad I don't have it. I've been picked up by my dealership twice; once in a Tiguan and once in an Atlas when my GTI was getting serviced.
I live in NJ and rush hour traffic here is bad. It's always stop and go no matter where you're at. When I got picked up in both the Tiguan and Atlas... the cars the entire time were starting/stopping... ANNOYING The little spool up and shaking of every start/stop were just annoying to me.
Not only does it annoy me, but these things are so gimmicky. No effing way it saves gas. Maybe 1%? Pshh sure, "huge savings". I can say with certainty, most cars with the start/stop will have serious issues at 100k miles. No way these starters, batteries, fuel pumps, etc can handle hundreds of thousands of continuous cycles. Something will crap out.
It's nice you can disable in some cars like the JL Wrangler (ESS) and others, but others you have to live with it unless you do some sort of mod.
I am sure they are just doing this to "please" the EPA and to get more customers to pay for more costly repairs at the stealerships. Rant over