I've only ever had their cupcakes and they have never been good.
problems:
The butter cream is too sweet, obscuring any butter flavor. Consistency is grainy, not creamy, with an unpleasantly dried-out crust along the periphery.
The cake is dry and obviously over-mixed. Open up your copy of "Joy of Cooking" to the quickbreads section and study the illustration of an overmixed cupcake. Cut in half, it exhibits elongated bubbles that look like the inside of an ant farm with a dry, tough and generally unpleasant crumb. This perfectly describes the sad, sad Dozen cupcakes I have tried.
Dozen, you need to brush up on your baking fundamentals. Irma S. Rombauer is rolling in her grave over your deficient little cakes.