I am using this laptop for last 4 years still its great.
Sony is a brand which is well known for the built quality here also the built is great and also the display is top notch panel.
My model is with 4gb ram i3 3rd generation and 500 hardisk and brought for a price of 33000 and still it have good performance the only bad thing is that the battery back up is very poor only below 2 hours of usage when wifi is connected or only one movie. But satisfied with this