Very nice video. I have been using Yubikeys for over a year now, and I couldn't really live without them anymore. The U2F aspect is in itself very nice of course, but for people that are just a little techier, using Yubikeys for GPG and SSH is even more interesting.
It just so happens that I post a lot of stuff related to Yubikeys and their usage, not because I'm getting paid for it, but because they're EPIC. Since this post is very much in line with my content I happily resteemed. If you are interested please check out my page.