So I drink coffee....I'm not a coffee snob, but like 8 o'clock columbian at home.....we have a Starbucks near work that I visit every other day.
I have a Keurig at my desk and can't get over the taste of the coffee. To me, I can always tell it's Keurig coffee....don't know if it's the flavor of the kcups plastic or the machine itself, but it's not as good as coffee from a real coffee pot. To me, it's ok if you want a cup of caffine and don't have another quick option. Convenience is nice, but I rarely use mine anymore.
As for these kinds of makers, check out Nespresso. I stayed in a hotel that had a Nespresso maker and I couldn't get enough of that coffee. They use coffee pods that are in foil packs...they look like discs. The quality of the coffee out of those machines was amazing. The model I used was a CS100 Pro or something....about $1300 retail, so I don't know if they have a cheaper home version available that uses the same pods. Check it out if you have the means:
http://www.nespresso.com/pro/uk/en/product/CS100/EUR