If you take the post-rock jazz of The Bad Plus or the older fusion jazz of Soft Machine and add the tortured metal of Kylesa, then you get some sense of the utterly original music that Dreadnought produces. There is some spacy folk prog ala Fairport Convention/Renaissance in here too. So basically it is as original a combination as you can imagine. The songs are well written, with interesting builds and the most diverse set of moods and ideas as any group in the progressive/metal genre.
Favorite track: Deluge.