my issue with using one shortcut driver is i prefer one device over another in my setup. If i want to use youtube my shield tv has a better interface. but netflix hdr and atmos only works on my roku, shield is getting a bit long in the tooth. So you would need one for each to properly select the one you want or need to do some programming. The driver will always try to use a device that is not in use or use the device that got the first selection if there are no devices left, or use a device that is using the same service. So in a larger distribution system it may require more.