Inspired to ask this question by a current top post about why Shirer's Rise and Fall of the Third Reich isn't highly regarded by historians. Adie is a BBC journalist who's beat is in conflicts. Does she fall to the same problems as Adie?
That depends on what you're looking for; Adie is writing outside of her field here. It's basically a Journalists' perspective on women's military uniforms in the 20th century. It's not a well organized book, and seems to assume that women in the military are more concerned about their appearance than their male counterparts, as well as asking the question of whether they should be allowed to fight on the front lines at all. It's much less history and more social commentary.
I can't say the book is even widely known by clothing historians, and I don't know if you would find it on the costume history library shelf. If you just want someone's musings on women in uniforms, it's great. But it's not exactly a solid history book.