What is interesting is that at the end of the article, he has a question-answer section that addresses specific issues and his take on the answer. This is always something I like to read because even if you disagree with him, at least you know clearly where he stands and why he disagrees. In many instances, it can be vague on what exactly people are disagreeing on. Here, it is rather clear.
In any case, I would think anyone in this field of study would want to read this article. At the very least, it'll get you up to speed on the theoretical progress in this area.
 P.A. Lee, Rep. Prog. Phys. v.71, p.012501 (2008).