I have been using this device since last 1 year and has not found any major con about it rather its a great budget device
Highlights:
1)Excellent performance from the board
2)Class-leading battery life
3)Good screen quality
4)Value for the money package
5)Good camera performance under normal lighting condition
6)Average low-light camera performance
7)No heating issues, even after prolonged usage
8)Android Lollipop out of the box; Marshmallow update expected soon my ratings
Looks 10/10
Performance 10/10
Charge 10/10
Display 10/10
Camera 9/10
Camera was good.we can’t expect dslr in 12k
Overall 10/10
As per price range phone was killer