Aren't US ebike regulations super generous, like to the point its pretty much just an electric equivalent to a 50cc bike with pedals on it.
Ours are so restricted I don't even see the point of a legal one outside of disabled or elderly users. Once I am up to speed I usually cycle at just under 30kmh which is above the speed limit for pedal assist ebikes, IIRC most of Europe has that sort of limit. If there are a lot of stop/starts then maybe it could be more useful, but I tend to avoid roads like that in the first place.