I have purchased this phone for my sister and let me divide this in pros and cons
Pros
Smooth to operate.
battery back-up are wonderful.
Good worth for money
latest android marshmallow 6.0.1
Cons
Heating issue(After 5-6 minutes of continuous operation,
the handset will start heating.)
Volume is very low
No led notification
No nfc
No FM radio,
No Automatic brightness
If you are heavy user like me I would suggest not to buy it.