I purchased oppo f1s last month. It is working very fine . The sound quality is very good and specialist in camera. 16 megapixel front camera gives a very good picture . It is very easy to use. According to features its money value is also best . No hang problem in this phone. Its look is like iphone. Very easy to handle Moreover it has inbuilt 32gb storage and a dedicated slot for sd card . Love this phone.