Like said a review is subject to personal preference and I think a lot of reviewers don't have the tastebuds to review a blend properly. A example is how polarizing the Ratrays Exotic Passion / Orange reviews are; you either absolutely like or despise it, no inbetweens, just because of how heavily topped people say it is. A Gawith tobacco like Squadron Leader or Skiff Mix may have a lot of fanboy reviews where they perceive the tobacco for the review different than they should. I'm not saying everybody does this, but it can be human tendency to do so.
Look at the tobacco contents, know what you could expect from those contents and make a guesstimate to buy a sampler or even a 50g / 2oz tin.