5mins is really as good as it has to be. Almost everyone needs a bathroom break or gets a drink/snack after 400miles.
Its also fast enough that I don't have to plan for it. I could be running errands, note a low charge, and unless I'm in a big hurry stop for a charge.
And you can do that while charging as there is no need to sit and hold a pump handle.
I sometimes spend 3-5 minutes washing all the windows. But I do dream of making F1-style pit stops on my cross-country treks.