Admittedly I'm a lazy dog owner but even so I found many of the training suggestions impractical for the average person. I could not do some of the things she suggested, or wasn't willing to. Unless you are really committed to working with your pup then I don't think this is the book for you.
We needed the extra wide for a hallway and it works but I don't think the construction is super sturdy. It does block the dogs but it kind of twists out of shape a little. I have narrower gates of this type that are much higher quality. But for a wide hall there aren't many choices.