I hate to piss on something someone's obviously worked pretty hard on, but my gut is screaming these are going to be a flop. Too complex to be durable, too hea

I hate to piss on something someone's obviously worked pretty hard on, but my gut is screaming these are going to be a flop. Too complex to be durable, too heavy, too unfashionable, too expensive. Having to "switch modes" to deal with stairs. The situations in the rosy advertising are probably not a great place to use them (eg. I can imagine difficulty with the sudden stops / sidesteps / evasions you sometimes need to make in a crowd, especially if you're going faster than the flow. And I don't care how good you think your hardware is, rocks and dirt and the realities of weather destroy my simple shoes over time - good luck with robotic ones). I just don't see how these offer superiority to passive, well-established alternatives like rollerblading, etc. that aren't difficult to learn. It's a bit sad saying all this as the tech does seem neat and they look like they could be fun to try.