that is a tough choice. Ideally, you'd want to listen to the same audio source in a car with it and one without it. That's the only way to know if it's worth it to you. I'm definitely not an audiophile. I bought this GT about a year ago when the price was at the very top, and SS Pro was in the car on a trial basis, to be turned off after three months if I didn't pay for it. I was hoping that my ears wouldn't hear a difference, because the extra $4K was a stretch. But unfortunately when it disappeared, I did notice it and it really bothered me. But fathom blue/stealth is the best color combo there is. At least I think so.