The article focuses on the UI, which is good, but the number one reason McMaster is the tops shopping experience (IMHO) is that they have a rock solid taxonomy. Every single product is meticulously categorized a dozen different ways, allowing me to drill down the feature tree to get exactly to the part I want. On Amazon even the product categories that have a few filters are hopelessly difficult to navigate. I'm stuc…
Indeed, one can search by your area's local trade name for an item and still find it in their catalog, even if no one else in the country calls it that!
For an example that's not hyper-local, search "roll pin," which about half the world uses to describe that particular item. For a more dramatic example, search "hickey."