Close to a three.
Book was good right up to the point where we stepped in to "Barter Town" (minus Master Blaster & the crazy Tina Turner character. Seriously I thought I was gonna read her jumping down in the middle of the people screaming "I know the law! Wasn't it me who wrote it!")
From that point on was a different tone and there was too much crammed in there at a much faster pace. Like she had to hurry up and finish the book, but in the beginning it was like a long Sunday afternoon drive.
I did enjoy the book, but the rush ending made me like it a lot less.