Under normal circumstances, 3 stars. In an airport terminal that's heavily lacking solid food/drink choices, definitely 4 stars.
In comparison to all of the other food/drink spots in this airport, at least you know what you're getting here and it's always consistent.
Ordered a strawberry, apple, banana smoothie (with a shot of zinc to try to fight those skeevy germs on planes).
The girl who rang us up was sweet and the drink was made quickly. No complaints at all.