We are HUGE coffee fans in this house and have been loving the Keurig for about a year or 2 now. It was especially helpful when I was pregnant and had to have decaf  or hot tea a lot.  I was so excited to see that there are apps in the app store for managing your Keurig addiction! 
The app K-cupboard is fantastic and 99cents in the app store. It is super user friendly!
 The Home screen is organized by beverage type:

Then you can scroll through by brand or type and see ratings from others :

Click on the ones you have tried and want to rate : Millstone Hazelnut is one of my favorites so I gave it 5 stars.
Another Favorite:
Then you can view a screen of just your rated coffees: