I have the space gray ceramic and it's a bit of a disappointment. The case is so shiny that it looks like nothing better than plastic. To my eye the muted grey of the aluminum Watch actually manages to look classier and more expensive. Moreover the grey is a good deal lighter than it appears in Apple's publicity photos, MUCH lighter in color than most of its other "space gray" products. Sorry, Mr. Cook, but if I'm paying for space gray, then space gray is what I want to get. As Victoria used to say, we are not amused. No doubt the white would look a lot more elegant, at least on a woman. But I'm a man and don't live in Miami or Vegas, so it's waaay too flashy for my world.
And the cheap strap it comes with is a bummer, strictly for the proles, Apple ought to have risen to the occasion and given us something nice (and thrown in a couple of nifty unique faces, as it does with the Hermes line). I spent enough for this baby without having to turn around and spend yet more for a suitably upscale band.
That all said, since I came to it directly from an Apple Watch 1 I was absolutely blown away by the dramatically longer battery life. That keeps me happy with my purchase.