Yeah, the new ISIS is pretty sweet. Much better than In the Absence of Truth, which was the album that got me into them in the first place, though I now prefer their older material.
Regarding Callisto's new album Providence, I preordered it and am satisfied with it. The clean vocals aren't bad, but sometimes they're just too abundant. There are instances where the music would be stronger on its own, but the vocals drags it down. Most notably on Covenant Colors, when they start with the distortion just before the harsh vocals kick in. That's a big difference from Noir, too much emphasis is placed on the vocals now.