Flavia
This reply is late...
Our company started with a Keurig machine but so many complained that the coffee was too weak/tasted watered down. And we bought so many different kinds to try out.
We have been using Flavia for close to 6 years now and everybody is happy...coffee and tea drinkers alike. I have to say Flavia coffees are on the strong side...almost like espresso. The French, Columbian, and Italian Roasts are the most popular.