Poppa Gator - that video is simply natural. The room was NOT sonic reflective -it was open, carpeted and high ceilinged.
That guitar accounts for the sustain. If you scroll back through the comments you'll more then one about the guitar's ring! I beleive if I strummed a chord on it and let, it would ring until next week!
As for pickups - I love the L R Baggs products, in particular their iBeam blender. It has a standard, under saddle pickup blended with an iBeam mic. It has a beautiful, complex sound and it is quite natural.