anup, I merely shared my opinion on the company's materials...I am not posting "potentially incorrect messages". I used PR, found the materials to be extremely helpful, and should not have to post my personal stats to prove to you that the materials are of exceptional quality. The fact that I choose to keep my stats private is my business, and not an indication of anything else.
If you don't like them, fine. I don't care. But don't try to invalidate the opinions of others because they won't conform to your definition of what qualifies as a legitimate opinion. As far as all of these companies go, we are ALL sharing OPINIONS. What we think about a product. Both Kaplan and PR can help someone score 700+. I personally prefer PR, someone else might prefer Kaplan. But they're just opinions, and if you disagree with an opinion, that's fine, but don't make silly accusations that an opinion is invalid if someone doesn't feel like telling you their personal data.