I am using this phone from the last 2 years, and according to me, I am sharing my experience here with you all
1)the sound or the speaker quality is excellent as one can clearly hear the background beat of a song.
2)the problem is with user friendly, which is that the back flip cover is not to strong and can break.
3)the style and design of the phone is good but t this phone would come in white vadient to then it would look more good .
4)the other features like 4 GB of RAM and 64 GB of ROM don’t let the phone to hang.which h is again a good thing.
4) one plus has given the marshmallow version support as utmost.they have not provided thew nougat or the Oreo.
5)the look and feel is fabulous, having a 5.5 inch one plus phone in hand.
6)at last, I would like to say something about the price of the phone that is it should be a bit less as 25000 INR rupees only.