This quality of this album is hard to express in a text box. Suffice to say if you're a fan of quality songwriting, poetic and moving lyrics and some of the most atmospheric and beautiful music I've heard in a long time then I guarantee you will enjoy immensely.
If you do enjoy this album (of you course you will) then you might also enjoy their British but unknown equivalent. They're called Takeda. Especially their first album Hufsa. Check it out.