Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pain of Salvation's masterpiece.

While many fans may disagree, I consider this album to be far and away Pain of Salvation's best album. It expanded upon the unique and eclectic stylings of "Entropia", and made it a bit more melodic and accessible. Not since have they struck such an excellent balance of their strongpoints. Every song on here is amazing, and full of simmering dynamics. It's also very tastefully done, despite the extreme complexity. This is a masterpiece worthy of being mentioned in the same sentence as King Crimson's "Discipline", or Dream Theater's "Images and Words". However, the band would soon descend into mediocrity following this album's release. "The Perfect Element" was good, but far from the caliber of this or the debut, and "Remedy Lane" is basically worthless. For quality progressive music, the older material is the way to go.