I liked this one as an end to the pre-crisis JSA (well, before their actual last story in "Last Days of the Justice Society"). It has all the hallmarks of a Roy Thomas Golden Age-revisionist story, which is to say it's very long, very wordy, and offers explanations to things nobody ever questioned, yet his passion for the team and their past exploits makes it an enjoyable read nonetheless. The story is really an excuse for Thomas to re-tell, in excruciating detail, the complete history of every comic the JSA had been in up to that point. Those were the less-interesting parts to me, as I enjoyed the modern-day mystery much more. The art was decent for the time, though it is odd there were no powerhouse names on it. I'm not sure how wide the appeal for this book is, but I had fun with it.