Besides coffee, you can refill your mug with hot or ice tea and hot chocolate. Minute Maid lemonade is still offered I think. Or it could now be that lite lemonade?
Coffee is such an individual taste. I'm mostly a tea drinker anyway but here goes. For me, Starbucks is just too strong although I do like the Kona Blend at Kona Cafe (they also have Kona offered in a press pot...not a blend). Years ago, I loved the coffee at CC. In recent years it has not been very good. I haven't tried it at CC for a year or so....tea instead...but it may be better now. I noticed that the Marketplace at BC now offers fresh brewed coffee so maybe the coffee situation in the self serve spots is improving.
But why not buy an individual cup of coffee first and then judge from there unless you think you will get your moneys worth through other beverages?
It does make a nice souvenir though!