The Staedtler pens are easier to maneuver if you're going down the calligraphy route. I bought the tom bow ones before the staedtlers and there's a big difference especially if you're a beginner. The tom bow ones are more flimsy and takes practice.
One side is a fine tip and the other side is a nylon brush tip. Both sides write as smooth as butter and will quickly become your favorite. The colors are like nothing I've ever seen before and they are easily blendable.