An 8 from me.
-1 for the unnecessarily creepy "artwork"
-1 for being 48/24
Being familiar with "dark"/ambient stuff; Dead Can Dance, This Mortal Coil, Bill Nelson's "dark" phase, Fripp & Eno, etc., this fits in perfectly in there.
As other members have pointed out, it has no "song structure", only Piano and electronic "treatments" which are panned perfectly throughout the Surround spectrum.
The fact that it cuts off abruptly at the end is a "Frippism".
Obviously this is something that you need to be in the right mood for, but it's very good and interesting nevertheless.
As I mentioned in another thread, I think that DCD or TMC are "creepier" and "darker" than this, so if you are into this, you'll definitely like it...