Short review - I love it. Best album since Portnoy left, with ADTOE and DOT just slightly behind it. They take the music in some very interesting directions over the course of the album, especially the epic, which did not fit any of my preconceived notions of what makes a DT epic, and I was happily surprised at how different it it.
Long review - well... maybe I'll write one later, but favorite tracks are the title epic, Sleeping Giant, and Transcending Time, with Awaken The Master slowly climbing up as well. The first three songs are good-to-great, the next three are great-to-amazing, and the epic is...well, epic.
-Marc.