I got this book because I'm an IT architect and was interested in reading about a similar job in a different world. The master builder of a medieval cathedral fits the bill. You have to understand what is needed, do sketch level design to get the sponsor and the other stakeholders to support your ideas, then do the detailed design and then make sure it is built to specifications. Your responsibility if it fails.
That part I enjoyed. It is also a fast-paced thriller as the main characters go from success to disaster and back in a chapter per cycle.
However, it was a bit too long for me and the writing wasn't anything special. I bought it used and got the sequel as well but I'm not going to read that, though I might have a go at his Century trilogy in the hopes that his writing will have improved.