Drains closed due to ghee for two days. I tried snakes and plungers, and then poured all three packs down two drains, waited 15 hours, boiled some water and voila, drains are open. We will be buying this product in the future.
Side note, it does stink and left a brown stain in the shower, but my pipe is clear, so yeah.
Bottom Line: Yes, I would recommend this to a friend