I bought this phone 8 months ago. Basically Oneplus brand is a brand on which you can completely trust on it. This phone has 3Gb ram, 64gb internal memory, 3000mAH battery, 13MP rear camera, 8MP front camera, 5.5 inch screen, single micro sim slot and very unique sandstone back cover.
This is a rough and touch phone. It works in CynogenMod though update in Oxygen 1.0.0 is also available in service center. Performance, looks, battery backup, reliability, camera, handiness everything is 10/10. Best phone from Oneplus.