The only complaint I have about the book is with these treatments. They seem superficial. Maybe I expected too much, or the wrong thing. When I saw 'episode guide' in the title, I was hoping for a little more insight into the storyline of pivotal episodes or what new and important characters or worlds or technologies were introduced in a particular episode (yes, I am apparently an elementary sci-fi geek, according to my children).
But, as mentioned earlier, most of the treatments deal with set design and costume design and we get to hear how and why certain actors were pegged for certain roles (there's a cool sidebar on each page which lists writers, directors and guest cast members so you can follow your favorites throughout the book). Granted, the special effects and set design was extraordinary for a weekly show; credits and kudos and all that deserve to be strewn about the heads of the crews in charge of such things. But getting into the minds of the writers would have been more fun.
However, there are interviews with the major players and even a small essay's from Amanda Tapping and Don Davis regarding their adventures on set and thoughts for their characters.
In the end, it is just a TV show and the book is pretty cool to thumb through. Thomasina Gibson has been writing about Stargate for several years. She's compiled books for each season of Stargate in addition to this guidebook. You can read a little about them here. To understand more of the story of Stargate and really getting an in-depth look at each episode, visit GateWorld and Joseph Mallozzi's blog.