Bests & Worsts Reviews from Amazon

Had a tub clog that did drain, just veerrryyy slowly. Clog was located 7 cups down the drain. Was looking at various things on Amazon, mini plunger (didn't work), little plastic serrated strips to poke down the drain to pull out the clog (couldn't reach the clog). Was looking at mini augers, but 1/4" wouldn't fit through the slightly less than 1/4" openings in unremovable drain grate. Got an email from Amazon suggesting a green gobbler product, took a look at the various options, read the reviews for the double flush product, bought it (bought 2 just in case). The day it arrived, read all the instructions, (freaking a little about what to do if you got it on or in you), opened one side of the container (no mess no fuss), poured it into the drain (again no mess no fuss AND NO ODOR). Closed the bathroom door for the night. Bright and early next morning, turned on the tub faucet a little. Turned it up, and up again - water kept running down the drain like gangbusters! Hadn't drained this well in YEARS.