I am using this mobile for 6 months and there are no issues In the phone .After two months I got marshmallow upgrade and there are many updates in the mobile.The camera quality is very good as compared to le eco 1s and Redmi note 3 the features are also neck to neck to this phone but if I want to buy phone I will buy k4 note because it comes with a fingerprint sensor and micro screen, wide touch and many reloaded features if you want to buy a phone under 12000 k I will say k4 note is the best phone