I have a Keurig, very happy with it. I buy the Green Mountain Sumatra Reserve Extra Bold, which I'd also recommend.

If you are accustomed to drinking Dunkin Donuts or convenience store coffee daily, then it takes a little getting used to...it does not have exactly the same consistency as actual brewed coffee...it's a little more watery. Although it is still miles better than instant coffee.

But now I'm used to it, you can't beat the speed, convenience, and not having to wash a pot etc.