Powerline internet adapters - who uses and what is recommended?

[drmike]

From what I remember they will only work on the same circuit they are plugged into, that being said I also hope those have some good encryption.

Hard to say to what degree powerline adapters work on newer electric breaker boxes.   If box were to include filtering and power regulation (higher end stuff does), very well might end up not working unless same circuit.

Encryption is indeed a concern.   I don't think these do enough, but I need to check and see what they claim.  Certainly nothing user side other than 1 button on the units.  Pairing much like you do with Bluetooth user experience wise.

I am per se fine with wide open non crypto where I would tunnel between the two ends entirely.  Not pedestrian.  VPN server + client likely the easiest hacker piece to facilitate that while keeping things "simple".   I run VPN on nearly everything these days normally (Android devices, ARM devices, etc.).