1) Ones that dishonestly state its fantastic
2) The ones that says its not good
3) The ones that says nothing publicly, and to the vendor says "bummer"
Reviewers has to be no#2.... Powerusers have the choice between all three...
1) Youre up the butt of the vendors...
2) You are no longer in dialog with the vendor, likely.
3) Many will consider you a traitor for not telling if something isnt good..