In his season predictions for each team he starts out by telling us what the team did 10 years or so ago. It gets really annoying to read at times.
I can totally see where his magazine has some value. That is, for anyone who is doing historical work such as announcers or similar. If I had to guess, I would say roughly 2/3 of the rest is either self aggrandizing BS, or adverts for other parts of his services. The rest of it, insofar as what is useful this year, could be boiled down to both sides of a legal piece of paper.