I personally have only a couple of reviewers who I would trust 100% (Fred Mills being among them), but, on the most part, I believe that individual reviews shouldn't be seen as indicative of a general truth.
I think the best way to get an idea about the album is to read at least three or four reviews from a variety of sources. Now, not everyone really cares to do this, which I understand, and not everyone has that much spare time, which I understand as well.
I just believe that that's the most effective way to take reviews.