Espresso is not a specific bean, blend, or roast level: any coffee can be used to produce espresso. This traditional Italian-style blend includes dark-roasted beans from South America, Africa, and Indonesia, in the proportions you might find at a streetcorner cafe in Rome. It's a fine choice for an espresso machine and also great in other coffee makers.
This coffee works great in any kind of coffee maker. Current recipe includes dark-roasted Brazil, Uganda, and Sumatra, although the recipe is subject to change based on seasonal availability of certain beans.