Pretty good band , but not the type for a progressive one. They are good only as a blackmetal/melodic death metal band.
The 3 good songs in these albums(what i think):
"The Curse and The Sepent"
"Behold The firestorm of Ages"
"Whispers of the Damned"
Metal from Sweden.As we all know the main flavor of Swedish metal is melodic death but these guys tend to add a lot more to their local flavor.Death metal growls accompanied by a good dosage of black metal screams with a very small dash of clean vocals here and there.The formula they use in their progressive song structures include melodic death riffs, blistering solos, thundering drum works and amidst all the brutality they are even able to inject some harmony through the serene keyboard works.They haven't quite perfected their Prog Death/Black sound but they are definitely close.
Best Song:The Curse and The Serpent