I bought a xiaomi M365 electric scooter a few months ago (i think
@TechTronic9000 has one, too). It's been great for my last mile(s) transport for my commute since I can now park way out and not have to pay insane prices for parking close to my office. it's also easy enough to ride to and from the train when i can.
i am also looking into doing an electric kit for my current flat-bar road bike bike but prices aren't that much lower than already built electric bikes. I'm still contemplating on which route to go.