I would say not bad, basically everything about this story is average. The only thing that's a little disappointing is the plot is unique, you pick it up and think it will be awesome however as you keep reading everything starts to fall a little short and becomes more average. It's still worth a read to kill sometime tho, by the same token its not a bad manga either. just could of been better.
I started reading the judge series which i heard was a better version of this story but so far this predecessor in my opinion is better.