Being a OnePlus 3T user , I will give you real and genuine review. OnePlus 3T launched with minor improvement over existing OnePlus 3 . It has many mind blowing features but also have few cons which you should know before buying.
It comes with 3400mAh battery which is non removable , it is little bit disappointing. There is no slot for Micro SD card, but if you buy its 128GB variant then this does not matter . Body is not water & dust resistant. The display resolution can be hands down for some users ( 1080p) .There is no FM radio support.
The camera quality is pretty impressive. It comes with 16MP both front and back facing camera with f/2.0 aperture. The selfie camera gives some decent and cool pics in low light condition also.
There is snapdragon 821 soC with 2.35 GHz kyro Quad-core CPU. Phone comes with 6 GB RAM. These features make this phone BEAST and best for heavy graphics users and heavy gamers.
In my openion , this mobile doesnot have major problems.over all It is a good mobile.