I have this phone for a week and i think its very good quality for this price. Only con is the developer support on for example XDA developers and not supporting cyanogen mod on all models of this phone.
i and my brother have purchased this phone: one black and one white. its very nice phone.
performance of this phone is very good in it's price range
quality is unbelievable high. it's main problem is flickering camera in my phone. on my brother phone it is very less than my phone.
it's speaker is good. emui is best except its main menu that can be easily replaced by your favorite launcher. the battery is good but chipset get hot in playing games and consume battery. gaming performance is very good but i charge it twice a day :-(
This is a fast phone with a nice frontal and back camera, it has a big display with a really nice resolution, 8-core processor, it seems really nice BUT call quality is not that great, every single person I call (it's doesn't matter if it's a normal phone call through my carrier, or by using "Line", "WhatsApp calling service", etc) they always tell me that some of the words I say are cut off, and that I need to repeat what I just said. AND it has 8gb ROM but you can only use 3.4gb of those 8gb, that's madness.