Works nicely in windows 8 consumer preview(free download)
But only if you use internet explorer via the desktop.
Internet explorer won't use third party add-ons if you access it directly from the metro interface.
Performance is quite good considering I'm running it in a vm with limited ram on a fairly slow system.
Can post a few screen shots if anyone is interested.
The hot corners in windows 8 are a bit annoying.
left bottom is to go to the metro interface
left top running app
right top brings up a bar with links for search , start(metro), control panel , devices and settings
Other than that, the metro interface and the ribbon interface for folders its sort of similar to windows 7.
Though it does seem a bit like more ios or windows phone 7 than traditional windows