First of all I would like to tell that.i have Been using it since a year and I have not faced any single problem.
I am using it without any screen protector and guess what it doesnt have an single scratch .
Its camera is average . I mean its Absolutely fine in its segment .
Its the best device for Gaming with an 2gb of Ram and 16gb internal memory
MIUI is the best User Interference ever I have seen.
Now lets talk about the sound quality.So the speakers are the best with amazing sound quality.
Go for it guys