I am using this phone for last 3 months. The review is based on this experience.
Look - I use the white one and it looks classy.
Camera - Rear camera takes awesome pics. Good thing about front camera is, flash is there to help you take awesome selfies in low light. has a flash.
Internal memory - I feel 8gb might be less now a days as after system memory ( 3.31gb) inbuilt apps takes roughly 1.6gb even after I have disabled many apps. you have to move the movable apps to memory card to free the space as you are left with 3gb space only and out of that watsup takes a lot of space ( pics/videos) .
battery backup - thunbs up. I dont play games on mobile, so for me it goes easily 1.5 days with a single charge. Even while using kindle app or imo for a long time ( these two apps consumes battery a lot) battery back up is good.
there is no lag as of now and its running as smoothly as new. I am using many apps like ( ola, uber, jugnoo, kindle, wordweb etc. regularly)
P.S - I had updated software to marshmellow immediately after buying.