I have MS. The ebike/etrike is the only reason I can ride at all. I now have five of them. And whaddya know, now that I can lend ebikes I have been persuading friends to ride out with me, people who have not been off the couch in years, and they're loving it. It's not just me that they are good for. I am feeling great about ebikes. And rather hostile towards the naysayers.