I had brought redmi note 4 four months ago. After using this phone I must say that it is good budget oriented phone. I have a 3gb/32gb version. Overall performance is good except few things. The microphone of this phone is not good.
You have to speak very close to the microphone otherwise the person on other side complain of low voice. Another thing I noticed the automatic light sensor is sluggish. It take times to adjust.