Do you want the short or the long answer?
To me it was a dream come true: novel by Philip K. Dick, directed by Ridley "Alien" Scott, visuals by Syd Mead, music by Vangelis, acting by Harrison "Indiana" Ford... I still recall 25 years later the thrilling sensation of being in an (almost) empty theatre hearing those hovercars, the subdued music and the voice off: "you don't advertise for killers in a newspaper"
As with every cult movie it's harder to explain the reasons to those not "in the know"
