I use TunnelBear for my VPN service on my other computers and phone. The way they support Linux is pretty bare-bones, and the config files don't work out of the box.
I started a GitHub repo for the project. It includes a unit file for systemd, and a small ruby script for choosing which country to use for the tunnel exit.
https://github.com/JenniferMack/TunnelBear-Helper
There's more about how this came to be on my blog. It's not Pogo specific.
http://jennifermack.net/2015/03/02/pogo ... archlinux/
I hope this helps someone.