I have this game and got fairly far into it. It can be very entertaining and there are occasional surprises in gameplay (hidden cutscenes, random changes), but overall it does get a bit repetitive due to the predictability at times. If it wasn't for the grayman there wouldn't be much of a point to the game; the fun lies within trying to avoid the guy. The Japanese novel "Lovely Sweet Dream," in which the author logs their dreams in great detail in a journal - there are some fascinating excerpts of it on tumblr.