Unpopular opinion, but I found this movie to be boring. It doesn't have the elements that would keep one glued to their seats. There are many other psychological/ psychedelic thriller movies that I adore (black swan, trainspotting etc..) but this one didn't blow my mind, maybe because of the overhype that it created over time.
Also to mention, editing and cinematography was spot on thus bringing the much needed psychedelic stuff to the screen nicely.