I haven't downloaded the entire soundtrack yet, but from what I hear I love. This does have some awesome orchestration and some nice themes. This definately fits the profile of an epic fantasy film score. However, I don't think it impresses me as much as anything from Hamauzu from Dirge of Cerberus (which is one of my favorite FF scores). I find that although Sakimoto does stick to the orchestral scores, he also has a potential that only those who listen to his experimental works can enjoy (i.e. Gradius V, Radiant Silvergun, Breath of Fire V). He is quite versatile, but always provides a perfect mood to a game. So I do love this soundtrack quite a bit so far. I will be more precise on my comments once I finish listening to the score in its entirety.
But as for FFXIII, Hamauzu will deliver a soundtrack worthy of FF fame. I have faith in him and I really hope he becomes more involved in the FF series (perhaps as a successor to Uematsu

).
Jam it back in, in the dark.