They use Square, so you can pay by iPhone. Try the affagato, or if hungry the Taza-gato (affagato + Belgium liege waffle). Sat. & Sun. they have Sugarbloom pastries (very good). Highly recommend!
I was told to judge a restaurant by its bathroom. Because the care put into the smallest details is indicative of the care for greater ones, like food and service. Check out the quality bathroom.