beginning of each review should lay out the price paid before shipping, the saw worked on, the instructions given the builder and the goal
having one review show a brilliant well shot video of a brand new saw tearing through fresh pine while a chorus of angels sing, accompanied by a well written review for one builder/saw and then the words "liked it, thanks" posted for a competitor probably doesn't give potential buyers much to compare with.
Having a handful of checkboxes or rating stars at the top of each review would probably be helpful and encourage customers to give thier input on a job/build even if they aren't disposed to do a full write-up and video
Is that all easy and "do-able" hell I don't know, I gotta pay other guys to remove screws for me, but I am a pretty decent customer and I know what makes buying decisions easier for me.
remember the vote that counts is dollars, it might sound wrong at first but truth doesn't have to sound right to be truth
Dave