The first thing is the display, its dark and not very high resolution and sensitive to vertical viewing angle. It claims 6 hours of battery life, I did not see that and to try to get some decent battery time you must have the display very dark. Another thing was the keyboard, it would introduce errors when you type. Now the built in cameras are so bad even for video calls you would be embarrassed to use them the pictures are noisy, they need a lot of light.
The quad core is the feature that attracted me to it which seems to be real, its fast, but the other drawbacks like the touch pad response is very sluggish, and the left and right click keys on the touch pad do not allow to "cut and paste" because it moves the cursor while you are trying copy and then paste. This device is poorly engineered. I don't like it and will probably return it.