1) First of all I would like to mention, dont go for reviews of people saying that the phone heats up a lot. I own a Xperia E3 too, even that phone heats up a lot. And this is common. My Moto X Play heated upto 42 degree. But u dont feel that much heat coz its normal.
2) Flipkart gives a great service. I ordered the product on 15th October and received on 17th October.(During Big Billion Days).
Now Review about Product -
I played all big games, Mortal Kombat X, GTA San andreas, NFS Most Wanted, Modern Combat 4 & 5, Asphalt, Real Racing 3.
All working smoothly.
3) Camera is superb. 21mp gives you all the detailing of images you click. Even when you zoom your clicked images there is no pixelation.
Front Camera takes great Selfies.
4) Display will feel too big if you are using 5.5 inches for the first time. However I watch all of my TV Shows & Movies on mobiles, and its like you have your own mini theatre;-)
5) Just go for it. Its worth the money.