I have purchased iPhone 6 space grey from Emall kolkata about 8 months ago and I'm still using it and even I am writing this review from this mobile. the very first problem I have faced within a week is that wifi and Bluetooth was not working then they replaced it.
afrer three months I upgraded to ios 10 to ios 11.
from that to till now I am facing lots of problems, firstly battery issue secondly hitting issue, thirdly slow processor and so on.
when I use internet, the battery hardly give service 2hrs continuously and for game I need to plug in the charger.
also have a hitting issue even when listen music.
sometimes its gets black out if I use 4 or 5 apps at a time.
but its looks really good.
if you are a regular rough and tough mobile user then I'm not gonna recommend it.