Giving 2 star because the notebook I bought has a good performance overall. However, build quality is below average. And the most irritating part is the customer service. Just use a notebook for 3 months and there was a problem with the loosing hinge, white blur in the display, and problem with the keyboard backlight. When I called the customer service, the person in call was very unreliable and unresponsive. I basically have to repeat about my concern as in I talked with some stranger. Furthermore, after I visited the customer service center the person who was in the counter was also not very helpful. They actually just want ask for your concern and leave. No feedback of what should I know about. I am really disappointed. Need a lot of improvement for human resource, Asus. Or else, you can never improve your quality. This is happening in Singapore btw