I've tried other mushroom coffee products and Ganoderma is the best, hands-down. It dissolves fully in hot water, which can't be said for some of the others, and the taste is great. Truly great.
I like mine a bit stronger, so I put two packets in a big mug in the morning. The perfect way to start the day, and no crash later!
The 4 in 1 packs are perfect for my daily coffee at work. Consistently good product.