This is a very special tea, not easily available, but definitely worth searching for.
The leaves are beautiful and they do look like eyebrows (hence the name). They are light and young and wonderful to look at.
The smell is Sweet / Malty and rather subtle.
The flavour is super rich but still smooth. There's nothing bitter about it and the flavour keeps developing in in your mouth so you find yourself leaving it in your mouth for a bit longer before swallowing the tea. It's mostly malty and woody but you can also sense some notes of roasted nuts.
The aftertaste is incredible. You get this velvety, smooth feeling in your mouth that lasts for quite a long time. Which is good to know, if you are trying to avoid too many snacks.
As for the boost, yes, it gives a good awake/alert push - maybe more so than most green teas.
A great option if you want to try something different and introduce green tea to someone.