I've been running Windows 7 beta build 7000 x64 on my laptop since Xmas and I have to say it's really solid. Unlike Vista, pretty much all the drivers came across. This means I did not have to spend time downloading drivers and installing them post OS. Also, the boot times are faster than XP, Vista, and Windows 2008.

On my desktop, I have a quadcore with SATA RAID. Typically, with a new build-out of an OS, I have to specify the RAID drivers - not with Windows 7.

My overall experience with Windows 7 is that it's solid. It's what Vista should have been and is really Vista with back-end plumbing fixed IMO. There are some new features that I can't live without (Aero Peek, Aero Shake).

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