I do the same with anything I'm purchasing, I want to understand what it's flaws are if it be a service or a product. Sure as one of the other comments points

I do the same with anything I'm purchasing, I want to understand what it's flaws are if it be a service or a product. Sure as one of the other comments points out, it could be created by the competition - but usually looking at the like-to-dislike ratio can tell you how much you should weight the opinion of the unhappy reviews anyway. (If 100 people review positive and 1 reviews badly, chances are you can dismiss that one bad vote).