The Bustelo K cup was not bad.
It was not exactly like the skies parted and heavenly angels sang, but not bad. The only thing I can think of to add was it seems to have an acid-y aftertaste. I had it my usual way these days, which is in the form of "bulletproof" coffee, aka add a T of MCT oil, a T of Kerrygold Butter and foam it up with my battery-powered mini-frother. No sugar and no cream. So the taste is probably disguised a good bit.
All the same, it was an alternative to have from the normal Costco Pacific Bold, or Starbux French Roast K-cups I usually get. As said before, blurry eyed, at 6AM, with the dog hopping around looking for her food, the Keurig is great at "Coffee, decent, as soon as fucking possible" for me. I'm not graced with a lot of patiencein the morning.