Unfortunately, there is a large number of typos and a fair number of mathematical errors in the text. Several examples (e.g., the sole example for Cauchy's integral formulas) seem to be from another book on PDE's rather than for complex analysis. The graphics also need a lot of work to make them better and more illustrative.
Overall, a nice idea, but it needs several rounds of copy-editing and error checking. As it stands, the book is not a good choice for learning about complex variables.
