For the money, it looks like you got a great buy, except for screen as others have pointed out. I would give it a solid 8.5/10 only for the reduced (active gaming) life of your battery of about 1-1.5 hours. As far as The Witcher 2 is concerned, it is a driver issue with AMD and will be should be getting fixed on this month's driver release around the 15th or - 2-3 days.
Edit: sorry didn't see comment that it was for NVIDIA 440M. My bad. And yes, it is still a driver issue, especially with dual cards on desktops. Don't know when NVIDIA is going to release driver fix.
Looking @ this makes me feel old...PROUD owner of NES, SNES, GENESIS, TurboGrafx 16 (PCE), N64, PSOne, PS2, Dreamcast, Xbox360, and PC.