Is this a true espresso like I would add to my drinks at Starbucks? Is it just strong coffee labeled espresso? I drink 4 shots over ice with syrup and half/half. Their shots are 1oz, so if this is a true espresso, how many ounces come in one pod? I've ordered an espresso from Tassimo before, was told it was 3oz. but came to 1oz. I love my machine and need verification before ordering monthly.