I bought the oppo a57 mobile one month ago.
Its rear and front camera are very powerful as 13/16mp. I take some photos of my family and selfie they are very pretty. Very good quality of both cameras.
There is a 3200mah battery backup. I feel that battery will run around two days.
I use my mobile approx full day but I charge my mobile two or three hours only.
There is a big memory space like 4/64gb, I can save and store my all videos, message and pictures etc. without any hanging problem.
I bought it for Rs. 14500.00 very reasonable than other companies.
The one negative thing is that when I use it for a 30 to 40 minutes, its back heats up and become some hot feel.
Okay but this is a good one for me.