The short answer is - That is entirely up to you! Coffee is all about the taste, so, if the coffee is delicious to you, it is good coffee. If not, it is not good coffee particularly for you! The long answer is - There are various objective quality criteria for coffee beans such as the number of defects per 100 beans, the humidity and the density just to name a few. These criteria help classify and rate different coffee beans to make them comparable. Specialty coffee beans, like Impact Berry Coffee, for instance does have higher densities and controlled humidity to avoid mold. This per definition makes a good coffee!