Zingerman's / Sumatra Dark Roast

Siphon coffee is supposed to make a cleaner, brighter cup, so I figured I'd stray out of my comfort zone and order a dark roast. I am not sure if that was entirely a good idea, because when I got the coffee, it was very earthy, not very full-bodied, and just tasted like roast. 

Maybe roastiness is what some people want. But I would have ascribed notes of dirt and cereal to this. "Wild" ascribes emotion to this coffee that I honestly cannot say it has. But I wanted to try a Sumatran coffee, as I have not had one before.