I think everyone was expecting another Godless Endaevor.
I think that the Obsidian Conspiracy happily sits along all of their albums.
As for instant hits, I've never encountered an album I instantly liked. But out of my 3 latest purchases (Overkill, Nevermore and Dark Tranquillity) the Nevermore one grew on me the quickest and within 3 listens I was fully acquainted with the album and could remember the riffs and melodies.