The same with laptop reviews which quite often just compare features and speeds, but not the feel, keyboard, trackpad, weight, noise and heat, port placement, carry-ability, one-hand-holdability, etc, etc.
Actually gives a feel for how it would be using it rather than descriptions of cosmetics. Also it gives constructive and relevant criticism which can be of help for future development.
This is a common problem with reviews, rushed out to be first, but not sure what is the optimal time spent for reviewing the product. Also, many times I get a feeling people reviewing distros are not really qualified, as in contrast to this guy who seems to know both what is important and also have technical knowledge, when needed.