Some areas of Code Craft overlap with Code Complete. But the book takes a different angle and approach to the material, and presents it an an easier-top-digest form.
The book also covers a lot of ground that McConnell does not.
I'd say that it's a worthy complement. For example, here's a quote from one of the Amazon reviews:
"The book will inevitibly suffer from comparisons to McConnell's Code Complete, Second Edition -- that's a very, very tough shadow to try and get out from. Code Craft seems to me to stand up to that tough comparison. Goodliffe's writing style is easy to read, and the points he makes are critical to folks who give a hoot about writing good software. The book's topics are well thought out, running from defensive coding practices, through the importance of coding standards, solid design, good processes, and a high-level view of methodologies and practices. "