We just returned from a 10 day cruise aboard the Millennium and we had two drink packages. We ordered drinks during dinner in the dining room each night with no problem...In fact, we received EXCELLENT service. I don't think you can utilize the drink package with room service...We always went to the bars to get our drinks with the exception of the dining room. As a side note, the food was excellent...It was no problem to order an extra entree if we wanted to try something different.