I just listened to this album for the first time.
The symphony was stunning (though, just out of curiosity, can you technically call it a symphony if it features piano? None of the symphonies I've heard have a piano in them). The rest...
Also, it has threatened to irk me in the past that so many of their "classical influences" are more or less lifting themes and sections straight out of the original pieces, but United States of Eurasia really pushes it. It's like they got to the end and went, "let's throw some classical on there", with no attempt to actually embed it into the piece at all.