Does it support cassettes? The pictures make it look like it is only configured for single-speed use.
Personally, I relish the exercise component of my commute, but I am wearing bike clothes (and sweating) and I could see that if you were commuting in work clothes something like this could be helpful.
As to how much time it would save, that would obviously depend on your route, etc. A high percentage of my commute is actually “fixed” costs like lights & intersections that would not benefit much from pedal assist. The long straight sections would, but I am typically going above 20mph there (again, road bike etc.). So I suspect that for my commute this wouldn’t save me much time. (This is confirmed for me by my coworker that does the same route periodically on an e-bike but takes same amount of time.)
Obviously this is about *your* commute, but just want to note that the assist may be less about saving time and more about sweating less.
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