There is a whole school of guitar based prog styled around the King Crimson style of music. These guys fit into that category. In a lot of ways, you can look at them as the Yang to California Guitar Trio's Yin - at least with this album. It sounds a lot like CGT if you were to add a metallic crunch to their sound. This is very much a fusion-like thing in a lot of places, too. All in all, this is a great album for those who dig instrumental guitar prog.
This review is available in book format (hardcover and paperback) in Music Street Journal: 2017 Volume 2 at lulu.com/strangesound.