I think constantly changing the driver bits would drive me nutz. Actually I know for a fact that it would drive me nutz.
I've got one of the Y shaped hex key tools with the common bicycle sizes. It works for my way of working wonderfully.
The issue is how we each prefer to work. For you the driver tool is a good fit. For me I know it would not be due to the almost constant bit swapping. I want to be able to reach down and grab what I need with one hand.
I watched a YT video on the tool. There's no doubt it's a trick item. Just not the right trick for me.
One place where it would be a total game changer is for folks with carpal tunnel or other wrist or hand concerns.