I have had this a few times, but this steep is significantly good enough to warrant a full review.
The initial sip is very green, but washes over your mouth with a slight sweetness and a slight seaweed flavor. This is not a terribly spinachy or umami sencha. The brothy feel is less from the savory elements and more from the addition of matcha, which is serving as a thickening agent. If you really look, you can find a bit of bitterness at the back of the sip, but it is so slight that it makes the tea juicy instead of astringent.
I really enjoy drinking this. It is an obviously green tea that does not have a super dominant flavor profile, as something like a dragonwell would. It comes off as fresh and green and slightly sweet, in addition to comforting and warming. I love these feelings, so I enjoy this tea, though I would say it is particularly special.
Flavors: Green, Seaweed, Sweet