I'm the lead developer at Netduma. I hope that its appropriate to post this here. Although this router is aimed at gamers quite a few of my tech friends really like the features and suggested I post here as well :)
I thought so, we're using OpenVPN and policy based routing. Yes the advanced settings allows you to enter your own config file. I think other tech people found it interesting due to simplicity of UI rather than tech behind it.
We have other features that far more impressive technically that we will release soon. Seems like people don't mind me posting here so I'll continue to do so :)