Asus X540SA-XX079T is the worst laptop to buy. Generally Asus offers good specification laptop in affordable price but this one is the exception.
First of all it’s interface is not so good user friendly. Also it’s display resolution is below average and it is harder to work on it as it’s display quality is very poor.
Secondly it’s sound quality is average and need external speakers for decent sound quality. Also it’s battery backup is average and heatup fast as compared to others.
Also it’s reliablity is average and it’s service & support is not so good.
So at last this laptop has no value for money and you should think twice before buying it.