That's great to see that Ward has recognized the value of their homebrewing customers with a named suite of tests for homebrewing. That homebrewing suite is a little more comprehensive than necessary and most water users will be able to ferret out one of the test results by themselves...iron. If there is excessive iron, it will be apparent via taste or by staining on plumbing fixtures. Red stains indicate iron and black stains indicate manganese.
As for the recommended testing, the W-6 suite of water testing is quite adequate for homebrewing information and it saves $10 for the brewer.