I’ve using this device since one year, I’ve purchased it on last March after few months the device memory( internal) gets full. This phone has lots of plus point such as it has 13 mp rear and 5 mp front camera. It has 2 gb ram but after few installation it become only 1.2 gb usable. It didn’t get any update from Xiaomi. It only receives user interface update.
It supports OTG connection. It has some cons apps don’t move to external storage. After few months on display there are some RGB( red, green, blue) dots occur. Device only has one sim slot. The power button becomes less efficient after few months. So if you have some extra money then go for reputed brand and get yourself a decent device.