Really ballsy crunch to the attack of the notes. Very much my cup of tea. 
Thanks, gwEm! I was particularly interested in your opinion, I figured it would be right up your street!
Amp on the edge of breakup (that thick, not-really-clean clean tone) + Marshall-esque gain pedal (but not adding Marshall's patented fizz and upper mid spike) + late-breakup speaker = very cool, early 80s hard rock/metal tone. It reminds me a bit of
Defenders era Judas Priest -- especially during the chuggy Judas Priest-y bit in the middle. :)
I may be making another video wherein I break it down and show how each part of the chain affects the others.