The Redmi note 3 which has been launched last year was one of the successful phone for xioami company.
The phone was good looking in design and performance was the best for the price where you can't get such gaming for higher cost phone though. Thanks to snapdragon 650 processor.
Talking about battery life it was also best where you can get a day usage normally.
The negative is just the camera which is poor in lowlight conditions.
Overall if you are looking for budget phone go for it. But xioami has launched new phone Redmi note4 which has slight improvement.
But this has been best phone, I own Redmi note 4 and my sis has Redmi note 3.
Thanks hope it helps.
