I've used Sunsilk's Addictive Brilliant Shine Conditioner 3 times. And while I'm not sure about an added shine, it has definitely become a lot more soft and smooth.
I have oily hair, which means washing everyday is a must. I have also started pouring cold water on it after my shower, so I'm not sure if that is helping with the condition too.
My hair gets immune to products pretty quickly, so it will be interesting to see if my hair stays soft or not. Will keep you updated!