Where would this subforum be without my contrarian 2 cents? I can tell you that I LOVELOVELOVE the GSH. Not kidding you.
Having said that, I'll also grant you that it looks least appealing on black. I liked the black with GH much more. But in terms of what it does for other colors, it's out of this world and way preferable. I like the SH on Ocean, Tomato and Steel. It makes a pretty big difference to the overall look and "aura" of the bags. I didn't like Vermillion with GH at all, but am head over heels for Tomato with SH. Give it a chance, it may grow on you.