I love my Keurig too! It's just over a year since I bought it and it's still going strong. Every once in a while I'll buy K-cups, but most of the time I brew from my coffee. I did find, however, that I need to purchase a slightly darker coffee to get a good brew, because I find it brews my regular coffee a little too weak.
My boys love to use it for the hot water for cocoa and those ramen cups of soups. Oh! and it has been saving me money on electricity since my old coffee pot sat with the warmer on for at least 4 hours a day and used so much more electricity (like 900 watts) if I remember correctly.