I Purchased yureka mobile. Their are adavantages and disadvantages observed in mobile.Speed is good.Headset quality is good giving good boss sound.Fast draining the battery.Heating issues.Screen turns into sleep mode.Sometimes not restarted quickly.Brightness is average.Primary Camera quality is average.Front camera quality is bad.Video quality is also avarage.After update of Lolipop phone is getting little bit slow. Updates for Android Marshmallow is not getting. In website, saying that Android Mallow updates will be available after some days.