It's a bummer that this looks to be a turnkey kit that does exactly what I would imagine is the most fun part of building an ISP: network engineering, building routing hardware, etc...

I see that your own ISP relies on PPPoE... is that a decision you intend to rely on for the necto lab customers (other ISPs) or was that something you had to do specifically in your own case? Have you seen any downsides to that? I know as a consumer PPPoE is kind of a pain in the butt.