Writer Brad Meltzer is a highly-regarded novelist and this was his first foray in the world comics, quickly showing with this comic, Green Arrow’s Archer’s Quest storyline and his Justice League run, that he is extremely well-versed in the universe, the continuity and that he is a DC fan. In that sense, you will always get a feeling of care and attention to detail with his comic book writing, which I actually enjoy and find very human and entertaining.
Having said that, Identity Crisis offers many dark revelations about the DC heroes that are controversial, to say the least, and this event has been heavily criticized by longtime readers as an insult and desecration of everything this company stands for. While I wouldn’t go as far as that, I do have to say that the revelations (which I won’t say, because I think you should read this miniseries) don’t really add too much to the characters in question, other than trying to make the DC Universe a lot more.
I’m not too hard on Meltzer because he showed in his later DC work that he understands what makes these characters tick; this was actually one of the many times the company’s editorial wanted to make the universe darker in the last two decades. But Identity Crisis does have good moments and Rags Morales’ art is phenomenal, so I truly recommend it to you.