They installed a Keurig machine a month or two ago at work - it included some reusable basket/K-cups, which I was glad to see, because I don't like the idea of piling up use-once-and-throw-away bits of plastic.
I tried it a few times with some good fine-grind french roast, but I just couldn't make it strong enough (I need ultra-strong coffee + ginseng in the office just to stay awake
), so now I'm back to crappy generic freeze-dried (which I can make strong enough to keep just about anything awake).
If madness made us strong, we would all be invincible.