Okay, maybe it's because Billy Idol has always been taken rather tongue in cheek by most people, maybe it's because it was released just as Cyberpunk was becoming unpopular, perhaps it's because Idol tried something different from his usual crop.
Whatever the reasons, Cyberpunk is a concept album that works, and they're aren't many that do, from start to finish you are hurtled into a variety of music styles, all capturing the essence of the Cyberpunk style. From rock to eletronic, the album has a little of everything.
It isn't perfect, Cher pops up for a song (which is never pleasent), but it's well produced, well written and pretty consistent.
Give it a go, you could do a lot worse.