I have been trying mushroom coffees for a long time-from health food stores, Whole Foods, online... even here. The closest I got to replacing my coffee 100% was the chaga from Birch Boys but for me....it is the flavor and not the caffeine so I ended up decreasing my coffee grounds and adding the tiny scoop of Chaga.
Then came the Mushroom Coffee. GAME CHANGER! First time I enjoy the flavor without adding any of my beloved grounds. No bitterness even when made stronger. If I choose to add it to my favorite caffeinated coffee - it does not distort the flavor. (Should I say I drink only black coffee??)
My ONLY sadness with this product is the packaging. I have yet to be able to open it and be able to reseal it so I use a binder clip. A small price to pay for the quality of this mushroom coffee! Try it!!!