It is an awesome device that I had ever seen in my life. If the device is overheating please reduce the calling.The product quality is too good.The touch is really very sensitive, easy to use, the camera quality is OK not so good.
Battery life is better then other phones.Reset the factory setting, after that KITKAT update will run stable and smooth. After kitkat update no lags no battery issues or anything. My grand 2 LTE works fine and it is a good phone with good look, size, performance and price. Just like a note 3.