Can't say how "exclusive" the offer is, but I got this email a little while ago. The coupon is only good against a single $500+ purchase i.e. you can't aggregate several purchases that together total over $500, and only good through 12/30.
The fine print:
"Offer does not apply to prior purchases, The Home Depot Gift Cards, 3rd party Gift Cards or Certificates, installation products or services purchased in home, Tool Rental or to Traeger®, Weber®, Bona®, Simplehuman®, Delonghi®, Buckhaven, Samsung Chef Collection, Bosch Benchmark® Series, Liebherr, Zephyr, Miele, Bertazonni, Fisher & Paykel®, Signature Kitchen Suite, Jenn-Air®, Dacor®, Thermador®, Monogram products and trade styles."
