I personally feel this album deserves 5 out of 5, however I can understand why certain people will dislike it.
In order to appreciate it you've got to be open minded and listen to the album AS A WHOLE. This is an ALBUM not just a selection of songs or snippets of sound effects.
This is Linkin Park's version of Dark Side of the Moon.
It is impossible make any literal comparisons with Pink Floyd's masterpiece but LP have produced a similar experience with A Thousand Suns.
My favourite Linkin Park album by far!