The matcha is delicious and I've been ordering it for over a year now. The only issue I have with this is the Zip Lock on the bag. When the matcha comes in, the bag is sealed, but the Zip Lock is wide open. This allows matcha to go in between the seams and it doesn't allow the bag to close properly after it's opened.
I always end up leaving these Matcha packets in a separate ZipLoc bag to keep it fully sealed. If the bag's Zip Lock is already closed when it comes in the mail, I think that would solve the issue