It wasn't open to the public.  We didn't have those plastic nametags or plenary sessions or gather in a hotel ballroom.  I did do those kinds of conferences this year and they were good.  But my best conference this year was this one, with three lovely ladies:

We discussed problems + solutions.

We asked probing questions.

We planned + networked + made new connections.

We conferred + conferenced.

And booked a great closing session performance.