It was obviously twice as good as an 8 valve car.Perhaps the upgrade will allow you to book your favourite cubicle in advance
"Please enter your release (!) number sent to your phone to unlock your reserved cubicle"
bluetooth enabled toothbrushes always seemed somewhat useless to me.
Reminds me of the "16-valve" label that was a major marketing logo for cars quite a few years ago, with the vast majority of the population having no idea what 16 valves actually meant.
I expect an "AI" toothbrush to make an appearance in the next year or 2.