A couple of months ago, I was riding in the N GA mtns. There were spots with sand in the road. I got into a corner, and as I was starting to lean the bike, I ran over some sand I hadn't seen. The rear wheel started to slide out, and I hit the brakes, front and rear. The rear ABS kicked in, and the bike just started to stand up. I regained control and continued on.
This is my first bike with ABS, and I really think it saved my butt that day. Not sure about it though, to be honest. It may be that there wasn't much sand, and that I had gotten through it when I hit the brakes. No way to tell, but personally I think the ABS saved me. As far as I'm concerned, it's a great thing.