I'm in the opposite situation. I don't drink coffee but the soon to be wife does. We got one of these things for Christmas and once we heard about the reusable filter we bought one. We've also loaded up on a bunch of the standard cups through random sales. So far, she said she isn't too crazy about the reusable one because the coffee has come out weak and she doesn't know how much to put it (that's what she gets for throwing out the directions).
As for me, I've tried some of the random non-coffee ones. I have a box of apple cider that is decent. The next one will be hot chocolate, but we haven't found a good deal on those yet. I'm not much of a hot drink drinker in general, but we have the machine, I'm damn well going to use it.