Did I say "Definitely one of their best albums"? Sorry, I meant "Definitely their best album". It does take more than a few listens if you've listened to Vulgar and onwards first, but once it grows on you, you'll really appreciate the awesomeness and creativity.
least accessible as in there are so many aspects about it that are initially non-accessible, all the subtleties and intricacies laced throughout its composition. the more you listen the more you pick up on the subtleties that make the masterpiece.