Writing Quality:There are some grammatical errors and sentences that don't really make a whole lot of sense, but they don't hinder the understanding of the story. Plus, who doesn't have typeos?Stability of Updates:It's pretty stable, plus the idea to give out new chapters for powerstones is pretty ingenious if not time-consuming. Story Development: The story is great. Really great, although it can be predictable at times. Character design and world design:I love both. The characters are masterfully done and the world- although it was described in only a few sentences- is also good. I think that it's an ingenious idea. Overall, it's a great book. Keep writing. :)