It's okay for what it is but of course oversimplifies things and repeats common debunked myths like Hood's supposed drug addiction. I read somewhere it had been considered for treatment as a movie and it certainly reads like one! One of its particular flaws is that it only concerns the final year of his life, from the end of 1863 to his death at Franklin, but that's understandable considering the medium.
Buck's
Cleburne and His Command is a recognized classic, but like many
classics written by participants the most important parts also appear quoted or summarized in secondary works like
Stonewall of the West, so it's not essential. One of its strengths was Buck's inclusion of Cleburne's battle reports for Murfreesboro, Chickamauga, and part of the Atlanta Campaign, but if you have access to a set of the
Official Records... they're in there too, so again not really necessary. Here's my longer review:
https://civilwartalk.com/threads/cleburne-and-his-command-by-capt-irving-a-buck-c-s-a.132526/