Sorry but I think (long time) riders won't go for it. I've been riding a longboard for 15 years, every time I do is pure bliss, and it comes at the price of some old-fashioned muscular effort, and believe or not, the effort is part of the bliss.

As I once said to a rider friend, I think of electric longboards like "the lazy hipster version of the electric shopping cart". Useful, but not fun.