Do you customize Windows?

Stardock just released Object Desktop 2007 that lets you totally customize the Windows experience. From the look and feel to the usability this is one package that lets you change everything.

I just don't trust applications that make that many changes to Windows. Seems like there would be either stability issues or performance problems. Anyone have experience with Stardock products?

Link:
http://www.stardock.com/products/odnt/