Is it safe to install Windows 8 on my primary laptop?

That's it in a nutshell. I remember installing the Windows 7 consumer preview a few years back, but that was on a desktop with extremely standard hardware. I now have an HP Envy 14 with switchable graphics (Intel HD 3000 and ATI Radeon 5650M), and while I'd really love to try out Windows 8, I don't want to mess anything up. Does anyone have experience yet with Windows 8 on an Envy? I know I can't restore to Windows 7 if I upgrade, so I want to be sure.