I've used it for 5 years, if you spend the time, it is really stable. Other links you might want to check out:
www.litestep.info
www.joeblade.com
www.shellfront.org
I too have used litestep... the default skin is very stable, and I used a skin that was very popular and easy to find, and it too was about 95% stable (it kinda spazzed out when I ran photoshop and switched virtual desktops), but overall Litestep is pretty damn good.
sniffle ... I miss morpheusX
When I was on Windows, I used Litestep. It was pretty good, and my friends loved it. I even wrote my own theme for it and released it, but most people hated it. The only real problems I had with it was that over time it would really mess up Windows 98.
I'm trying to talk myself into doing this, but Why would I use LiteStep, when I can use Microsoft's interface which they spent thousands of dollars creating? I dont get it.
chrome
I used this a long time ago, but I had nothing but trouble with it. It would crash constantly. Is it any more stable now?