The is more for info of those that didn't know it existed. Personally I find it a great quick reference Tool for quickly narrowing down product to customer requirement and coming up with the Part Codes at the same time.
The added benefits being; its written by a Meraki SE and its constantly updated, so has the new HW included as well.
I certainly found the speed with which you can do quotes and generally help with Sales queries has vastly been improved. One of the added advantages (as with all Meraki things) is the guy who wrote and maintains this is very responsive to feedback.