Thank you for this suggestion and link. It also tough sometimes for web hosting providers to get an honest review about their services. Satisfied customers usually don't feel the need to go and give a review, so mostly those people who are, righteously or not, dissatisfied go on the forums and complain.
You can try with different forums and their special sections for reviews. You'll learn to distinguish honest reviews from the fake ones. I believe when the mark is perfect it's usually not genuine.