I have heard people say they love vista, I have heard others curse it and go back to XP. In one case I know of a Microsoft Developer who will not run vista. I love new technology but respect speed and performance and I do not see either of those in vista. Currently I am running vista x86 and I am enjoying it other than some compatibility issues.
Here is an interesting post regarding vista.
In this new tech age, we have lots of options Linux, BSD, MAC, and windows. So what keeps you using windows?