I think jgarth's review of Epicon is about as right on as you can get. I am also a huge fan of E.S. Posthumus and Craig Armstrong, and was pleased to hear that Immediate Music made a commercial release with Globus.
Personally, I'm more accustomed to E.S. Posthumus' Unearthed (also an invaluable purchase). Because of this, some of the tracks on Epicon caught me off guard; some of the lyrical lines seem too 'pop' for my taste, for lack of a better term. Nevertheless, you get lost in Globus' music very easily, and the range of emotion is strong throughout the album. I'd list Epicon's strongest tracks, but they all have their own merits.
It's a shame there isn't more music like this. Hopefully as the music industry evolves, more composers will develop and embrace this cinematic-crossover genre and take it to the next step.
Overall, excellent release from Globus, and I highly recommend it. I'd give it 4.5 stars if Amazon allowed it. Again, my only qualm is with a few of the lyrical lines, but they certainly don't take away from the beautiful music contained within Epicon.