Pros: It's Windows 7 Ultimate.

Cons: $300 Retail.

Overall Review: Tried Windows 8. It was okay but Win 7 is what I know. Didn't care much for the tiles and the lack of a start menu in Win 8. I know there are third party apps for menus but they just didn't work all that well for me. I will wait until MS releases something better than 8.

Pros: Speed and overall improvement in performance is incredible.

Cons: none.

Overall Review: Best upgrade ever purchased. Replaced my laptop hard drive with this. Windows loads much much faster. Most surprising was that my Adobe Photoshop and all the other Adobe hogs now open almost instantly. Overall laptop performance has been greatly improved. Impressive!