Hey, man. I thought the EP sucked too. Don't let that dissuade you.
I've never seen such a strong case for the importance of mixing. The difference between the album tracks and the EP versions is unreal. The verses on "Believe Me" are the best example, imo. I hated that song before. At lot of times, it sounded like Russ was just completely over-the-top screaming, but now the guitars have much more presence, the drums are more powerful and it all comes together and works perfectly. His vocals are so intense, yet incredibly melodic at the same time. Amazing stuff.
I agree that the album corrected many of the flaws with the EP, including the bad mix. The production on Omerta isn't perfect, but it's light years beyond the EP. I mean, Orlando sounded like he was playing through a frickin' telephone.