I have had this for a few days now, and so far I am very impressed. Fast, practically no clean-up, and very good quality. To be able to offer guests a choice of coffee, coffee drinks, tea or hot chocolate is great. So far I have tried the Gavalia drinks that came with it or that are sold seperately in stores (Gavalia latte, cappucino), except the espresso alone (not a big fan of espresso), and the hot chocolate. The Gavalia coffee is smooth and mild and very good, though I am hoping the coffee I ordered through the Tassimo website includes stronger alternatives. Latte and Cappucino are very good, and comparable to coffee shop (though maybe not the top shops). I'll get to the Twinings earl grey tea soon, and make myself a mocha with Hershey's syrup. Overall, I have zero complaints about the function or quality. I am very anxious to get the coffee only offered through their website, although the Maxwell House brands are not available for some reason (support e-mail says available again soon).
The negatives, which for me are minor, are 1) expense. I like it so much I am drinking way too much. That'll slow down as the novelty wears off. 2) Why can't any of these pod makers account for a tall travel mug? It seems so easy to consider given the popularity. You can remove the entire cup holder, but since it is also the drip tray and steam relief valve you have to clean up some water in the bottom tray. I could not give it 5 stars because of this.
I am thinking of getting a second one for the office but not sure whether I get this one, or try the Kuerig (??) just for variety. It is hard to not get another Tassimo now that I know what it does. Also depends on others pitching in on t-discs. I may take it in for a week as a trial before I buy another one.