I don't get the point of owning a tap-in console. From what I can tell, it's a function that's exclusive to the Tamron line of lenses. What does it do?
It's essentially just an expensive accessory for certain camera lenses. It allows the user to customize the function and focus of the lens in more detail.
In order to work, it pretty much requires a reliable internet connection, so it's truly not worth the money if you mostly shoot out in the wild where you can't get a signal.