Working pretty well so far.
Uses about 25 Watts (with USB enabled).
It handles unencrypted traffic flawlessly.
OpenVPN connections (using the AMD GEODE LX encryption block) via my StrongVPN account tops out at about 30 Mbits per second down. It is not as fast as my Pentium-M based laptop that was my original router (it could saturate my 45 Mbit down / 4 Mbit up no problem).
Overall, not too bad, but not sure if it was worth the hassle.
I’ll do a write up on how to setup StrongVPN on pfSense soon.