I am using a vivo v5. my impression on this device is very good overall. but not the best. it almost ideal for a music lover and camera lover who wants a good selfi camera within mid rang but no so ideal for heavy games.
positive
-20MB front cameara
-1.5 ghz octa core
-4 GB RAM
-finger print sensor
-quite good low light photography
-32GB inbuilt
-Some useful inbuilt apps are grate
negative
-not a metal made device
-worse battery backup in this price rang
-poor selfie flash
-hybrid slots
-no nougat updates till now.