Recently bought first Keurig - Duo Plus - which came with 15 samples but only 1 decaf (not Green Mountain). So bought a small box of this but too mild even for me who thought I was a light to medium drinker. But to be fair I add 2% so if you drink black perhaps... Apparently I am medium as prefer Green Mountain VT Country Blend decaf (and hoping my favorite GM Nantucket has decaf option in future).
When coffee begins to dispense, Nearly all the grounds come out also. Stream of water is also very dark and impossible to drink. This has never happened in the five or so years I've had a Keurig.