I bought this model in the year 2012 in 30000rs from ranchi sony center and I also get a 4gb pen drive with it.i selected sony Vaio because I heard alot about it and its services. I choose this model over other model because its has everything means 4gb ram, 15.6inch screen, i3, 2.1ghz processor, hdmi port, blutooth 3.0 and 320gb harddisk space which is enough for me that time.
It has two card slots one for duo pro and second for mmc.it has 3 usb ports and dedictaed video memory is 512mb which is good for gaming with nvidia graphics. I have lots of work of typing and I use this for long hours so I purchased a cooling pad also which supports 15.6inch laptop and a wireless keyboard and mouse set.i am using this laptop very much but it does not require a battery change till date and still giving 1 hour 30minutes back up on battery mode.screen resolution is 1366*768 which is good and picture quality is excellent as it sony.
Audio quality is also great on headphone and on speaker both. I am very satisfied with this product but now sony stopped sales of vaio products but they are still giving after sales service to vaio customers. I recommend it to everyone.