I bought this one as classic grade matcha and robust flavour.
On smelling the package before even opening it, it did smell like french butter cookie to me. When I opened the package, there was a very strong astringent almost chemical smell, on top of a buttery matcha smell. So I got a bit worried.
I brewed it up traditional style, with just hot water. The smell of the brewed matcha is a very strong green matcha smell. There is a light buttery, vanilla smell as well. None of the astringent, chemical smell that I smelled in the dry matcha. It tastes like green matcha with buttery and vanilla notes. There is a light pastry taste. Moderately creamy. After adding some white sugar, it tasted a bit a cookie. I would not say it tastes like a french butter cookie but more like a generic vanilla cookie or vanilla cake. If I think about it hard enough it could be french butter cookie.
The flavours start to become much stronger and much less green matcha taste as it cools.