"Alien", "Perfume", "Work", "Til Its Gone", "Hold On Tight" and "Passenger" alone are better than anything she's released this decade.
It's preceded by its bad reputation though (we've had people here explaining the mediocrity of the album without even hearing it first
) and it's not your usual relentlessly "boppable" and oversexual Britney album, which is what the fanbase want from her (and what's she'll have to come back to with B9).