So far, I have to agree, but I'm still hammering the album out though - I can't say I feel 100% conclusive yet.
In the Absence of Truth sounds like Panopticon with better production, with less atmospherics and a lighter feel. As a positive though, Aaron sounds like he's finally learning to do grim vocals properly. He sounds much more controlled on this record, the results are positive and less painful.
PS re: my earlier post: its not that Isis suck, its that there's too many bands seemingly doing the same thing. It seems on the threshold of becoming the new Gothenburg in some ways. And when I saw Isis live, I was disappointed in a number of ways... but they do not suck.