I am using oneplus3 from a month as my primary device, So lets started with the review.
1) Build quality - Build is really sturdy and solid but sometimes slippery due to metal back.
2) Display - Display is good , not great
3) Battery life - Battery life is good , I can easily get between 4: 30 to 5 hours of screen on time.
4) Performance - No worries for performance its very smooth.
5) Camera -Camera is very good on this phone but not as great as other high end like s7 edge and iphone 7 or 6s
6) Conclusion - At this price , its a great buy but you can spend more 2000/- and buy oneplus 3T which has great battery life