There are many things I enjoy about Dynahead. For one, when they are brutal, they are brain crushingly so. When they are melodic and pretty, it's absolutely breathtaking. I've heard plenty of metal use the hard/soft dynamic, but not so many that do the various parts as well, or combine it all so seamlessly. There is also the great variety to consider. Finally, the way they take a core riff, lick, or melody, and continually evolve it through a variety of tones/feelings/styles.