The most obvious addition if you have a 100W radio is an increase in power to 500W. In addition to this, the Aurora radios are 80% efficient, so the electricity required to make 500W is less than half of what it would be with a traditional radio and an external amplifier.
As a result, you save on operating costs. Also, since the heat generated is about one-fifth to one-sixth that of a legacy 500W amplifier, it lowers cooling requirements on your house and can help keep an even temperature in your shack.
Finally, because Aurora is completely integrated, your shack with Aurora is much cleaner with fewer wires, cabling, and devices.