I've had my SBSS watch and link bracelet since May, and it's pretty much perfect.
I thought I'd gotten a big terrible scratch across the clasp a few months ago when an aluminum ladder I was carrying slipped and scraped against my band, but amazingly it was the ladder that was scratched! The mark on my band wiped away totally.
The oleophobic or whatever coating on the screen still seems to be working nicely; microfiber cloth wipes with a little slow grease have the screen smear and print free every time they're tried.
My only incident was early and clumsily my fault... I sleepily dropped my watch face-first onto a marble floor one morning, and the glass shattered along the bottom corner (under the friends button). I have AppleCare+ though, so Apple mailed me an express replacement within 24 hours and my original cracked SBSS was sent off to them, never to be seen again!
This SB Milanese Loop leak has me intrigued; I'd be tempted to buy that as a second band, or maybe a black leather loop. However, both of those are "fancy" like my link bracelet, so maybe I should get a black sport band instead, to have a casual option...