I missed most of the series on PBS, but what I saw looked very good, much better than the earlier 1900 House. This book is the companion to the TV program and is really better suited to those who have seen it as I found some parts a little confusing due to not having watched most of it.
The book gives a good background on the house itself but is skimpy on the program, reads almost like it is about a real Edwardian family, no details on family selection or what happened after their stay was over.
All of the photographs are very good, the little extra sections on the cast I found interesting (likely would've been better if I'd actually seen the show), the side bits on foods and other items were even interesting.
I did notice that, as in 1900 House, the experts setting up made a surprising blunder, here they forgot to check the possibility that a decades unused chimney might be blocked (which it was). Another thing I found little mention of was the Silver stair railing (does the show mention it?), something so unusal and only a couple of photo captions about it.
Not enough to be a time travelers textbook but a very good companion to the series.