Your alarms should be going off by now. If a magazine has a review of any product without a corresponding discussion of their method of analysis, just throw it away, it was written by the software vendor. Of course it is, as are almost all censorware products. All those others are lying to all of their customers, because they know the customers will have difficulty evaluating their claims, will find it impossible to know exactly what's being banned. Censorware is not capable of improvement, because the job it sets out to do is an impossible one, given the inherent limitations of current technology.
Criticism slides off.
Computer-hype magazines ignore the criticism in their desire to sell product for their advertisers. And only the end-user, be it parent, school, or library, ends up suffering by purchasing snake oil. It has been the subject of a legal battle going for a year now. The ACLU, CWP and Mainstream Loudoun have been exposing bad blocks on their list left and right. And if you're a public institution, please, don't waste the public's money believing that any product can restrict itself to filtering only obscenity.