Truly a near-masterpiece.
Satoshi Kon is a visual genius. His work influences the likes of many modern-day artists, and directors. Paprika's dream world is a visual spectacle, and the way this story plays out is so FULL of surprises, twists, turns, and genuine revelations that'll have you dissecting this movie for years.
This movie rubbed its mark on even some of the greatest filmmakers in the world today, as it inspired Christopher Nolan's Inception.
Although, I do believe I need to give it a few more watches to truly grasp it, I'll stick to giving it a 9/10 as it can drag in a few parts. But those few parts it does drag all lead up to its magnificent ending. One of the most underrated anime's in history.