Legal regulations for eBikes

Hey everyone!

Just got back from a fantastic 30-mile ride on my Specialized Turbo Vado SL, mostly on bike paths and some road shoulders. It got me thinking about how varied eBike laws are, even within states or between countries. Has anyone here had any personal experiences, good or bad, with local regulations regarding speed limits, motor wattage, or even where you can ride your eBike? I'm curious if anyone's run into issues or found particular laws really helpful or hindering.