Hehe.. I changed my Windows Vista to Windows 7 few days ago..
My first impression was Windows 7 is superbly faster, run smoothly even though with animation and has similar interface with Vista..
Usually, I had to wait few seconds before the Network and Sharing Center's window pops up, but with Windows 7, the window pops up immediately after I click the icon.. Everything is becoming faster and better than Windows Vista.. Great..!!
I fall in love with Windows 7.. Even before I installed this Windows 7, I am very inpatiently to get my laptop into Windows 7.. hehe