I have no hesitation in recommending this to lovers of Roman military fiction, and indeed anyone else who enjoys a great tale. The book actually interested me a lot more than I expected, particularly due to the setting. I am a fan of Roman history and have a good grounding in the subject, but mostly in the late Republic and Principate era. This book is set during the dusk of traditional Rome, in the late 4th century, with the Emperor Valens, Comitatensis troops, bishops, Goths, Constantinople and the Black Sea region. I recently became interested in this era after visiting Istanbul and 'Legionary' just expanded on that, dragging me in.
The plot is complex and extremely well-constructed, far more neatly than I realised at first, with twists and cliffhangers. The settings are beautifully described and leave the reader with a well-presented view. The characters are believable, interesting and appropriately sympathetic or loatheful.
In short, this is well worth the price and the time. It is, simply, an excellent read. Sequel, mister Doherty?