I've used pfSense for quite some time and it is great. One odd thing I wonder though... every time I've run in on an AMD-based CPU, weird things happen, like stuff doesn't work, I get random lockups, etc.
But when I run it on Intel-based CPUs, things work fine.
Now granted, it could be that all my older AMD-based setups are junk, but I was wondering if anyone else had similar problems.