Every brand in the set is described with the same attributes and joined to sales. What a brand sold and what shoppers said about it are read together, on the same products, so the comparison holds.
A benchmark is only as good as the definitions under it. When every brand is described the same way, a difference in the read is a real difference. When it is not, you are comparing how two vendors coded rather than the products themselves.
Your brands and every competitor in the set carry the same attributes, applied the same way, down to the individual UPC. Nothing is matched by name or rolled up by hand, so a gap in the read is a gap in the products.
What a brand sold and what shoppers said about it are read on the same products rather than in two separate studies. A brand whose satisfaction is falling faster than its sales shows up as exactly that, instead of being averaged away.
What a shopper expects from a can is not what they expect from a multi-serve bottle. Formats are read apart rather than rolled into one category number that flatters both, and the same split applies wherever pack format changes the job the product does.
The worked example above is one category. Here are three more, each read on one definition across the whole set.
A benchmark is only worth the decision it changes. Knowing which brand owns which language, and where your own read is slipping, is what the next brief runs on.
See what shoppers say about every brand in your set, on the same attributes, alongside what each one sold.
Thirty minutes on your categories. How the record gets built, what it holds, and the questions your team could put to it.