Just FYI - at least through the HD website, they will tell you aisle Y bay X (though it may not say "bottom right"). So the assistant at HD isn't adding a ton of value.
They are, in that then I don't have to pull out my phone, wait for the app to load, wait for the app to interrupt my workflow to flash up the latest sale ad, wait for the search to time out a few times, then realize I'm in the store so it reloads to show the in-store experience, then go back to the search and have it not remember the history, then have to wait for the search to go through, then scroll through the list to find a version of whatever item that's actually in the store I'm at, then wait for the item to load, then finally get the isle and bay info. Pulling out the app is often my last resort.
Or I just ask the person standing next to me "hey where are replacement blades for utility knives?" and instantly get a response.