Oppo F1s is one of the good phones. it gives you everything which you want from a good smart phone. Sound quality of the phone is too good. both of the speaker gives a very clear output of voice. Talking about ease of use, there is 3GB ram and 32 GB rom so it will give you a very easy and hang free use. style and design of the phone is also very good. screen is proper big and with high resolution. 3075 Mah battery gives a very good backup for whole day. There is 13Mp rear and 16Mp front camera, both of the camera clicks very good and high resolution picture. ya its a reliable product. price of the phone is almost Rs.18, 000, it may be valuable when compared with features.