I have tried many of these from Amazon and this brand definitely stands out, smooth taste and much less bitter. Doing my research, reading the fine print most extracts sold use the entire fruiting block, which includes the grain and sawdust the mushrooms are grown on and gives it a "off" taste. I've only found one other brand that uses only the mushroom itself to make the extract from and they charge $50 a bottle, literally double! THANK YOU for not pricing this insane!