Re: thanks sean

I have noticed this faceting also and found a very small note in the docs about an option that fixes it.
there is an option on that node to convert to triangles or convert to quads. If you have a mesh that has more than 4 points to a poly or an amount of triangle polygons use convert to triangle option. It will greatly improve the look of those funky faceted areas that you're noticing.

Disclamer: results may vary.