"I haven't used the item yet, but I did measure how much sugar fits in that little cup, and it's about a TABLESPOON, not a teaspoon. So don't be fooled into thinking your portion is properly controlled if you want the equivalent of one sugar packet (which is one TEASPOON).
The product description should have specified the exact amount -- "spoonful" means different things to different people. If you're watching your sugar intake (the main reason this dispenser interested me), one tablespoon is too much sugar!"