Very easy to make and loved the method - didn't have to drag out my big Kitchen Aid mixer OR even use the electric hand mixer. But I was a little disappointed that I could not tell there was even a hint of coffee flavor. I put in all three tablespoons of the instant espresso powder - which really smelled like coffee the second I removed the lid from the jar. So it's unclear if the cinnamon over-powered the "coffee" flavor. When I make this again, I will reduce the amount of cinnamon.
This cake is fabulous! Moist and chocolatey with a hint of coffee. I was skeptical during some of the steps but it all worked out great.