I can't see what all the fuss is about regarding stop/start.
It is always switched on in my car, but it almost never activates, simply because the pedal pressure is too low.
I was always taught to 'feather' the brake pedal in the final yard or so, coming to a stop, to avoid jolting my passengers.
Consequently the pedal pressure is reduced and so the stop/start does not activate.
On the odd occasion when is does, the restart is instant and virtually not noticeable.
However if I am to be stopped, more than a few seconds, I drop into neutral and use the handbrake, though I suspect that this is not taught nowadays, judging by the sea of brake-lights at most junctions!