The appeal is that you can a cup of fresh brewed coffee without making a whole pot. There is no pot to clean and the neuritis cups come in different parts goofed types and teas “
You can do the same thing with a CHEAP one cup Melitta filter. A mere fraction of the cost, and just as fresh. You pour boiling water through the filter directly into your coffee mug. It is the same principle as the Keurig, uses no electricity or energy other than heating the water (and we keep water in a pump pot heated all the time so technically, yeah, I do use electricity, but we need the hot water for other reasons unrelated to the coffee). A keurig is very expensive, and except for the specialty coffee, is basically the same as any other coffee maker. So buy the K cups and pour your water through them into a Melitta, if you MUST have Mountain watever coffee.