I generally dislike mushrooms but I was pretty moved by Joe Rogan's podcast #1035 with Paul Stamets. Despite being over 2 hours long I suggested it to and watched it in it's entirety with several different people and each time we end up discussing the content off and on for weeks or months afterwards. Highly recommended.
These people are great - I have ordered a bunch of yaupon from them, both light and dark. The light roast is more of a green tea flavor, while the dark roast is closer to a black tea or even coffee. The best part about yaupon is the buzz, though. It's a strong boost like coffee but without the jitters and crash that coffee can cause. It's a more lucid, feel-good stimulant with a flavor that's hard to describe. Much less bitter than coffee or even tea, it has an earthy, smokey taste that resembles yerba mate a little bit but resists easy classification. Highly recommended.
https://www.youtube.com/watch?v=mPqWstVnRjQ