I haven't heard the new one, but Deathcult is their only masterpiece thusfar, imo. "Conjuration..." has streaks of genius but it's not quite unique or interesting enough, while the other albums suffer from a lack of coherence/progression horizontally (odd indeed considering Deathcult... is the utter master of this). That said, I think they have easily the best sense of melody in death metal, it's extremely unpredictable yet always logical.