Ive only had my OnePlus 3T for weeks, but I continue to be impresses by the speed of everything. the fingerprint scanner is especially fast and accurate and the UI is the most lag free of any android phone Ive ever owned. if you want the smoothest UI experience on android this is the phone to get.
Camera quality is great and although it may not stand one to a few 2016s flagship smartphones especially in low lighting, it is perfectly adequate in good lighting conditions.
The 5.5" 1080p OLED display which is adequate bright.
Camera quality is great
Battery life is also adequate it easily gets me through full day with moderate usage.
all in all, I believe this is the best smartphone for the price currently on the market. there really arent very many shortcomings to this phone.