I like the music quite a bit. The again I play guitar and play pretty much every style of guitar music that has ever been made. I particularly appreciate technical skill. This is a difficult piece.

As to the dark video. People like it for the same reason they like horror movies. I don't care for the suspension, bondage, etc in it myself but it was a well made video.

Some people like it. If everyone only liked the same thing as everyone else it would be a very boring world.