I am using this device since 21 days and I am very satisfied with the product I bought this gadget from flipkart.It costs 12999 for the 4gb ram and 64 gb inbuilt storage and I recommend you to take this version only otherwise if you want 3gb version then please go for redmi note 3 because redmi note 3 got snapdragon 650 which is very good for heavy usage.Now I give you pros and cons of this redmi phone
Pros
1.Camera is very good and click magnificent pics its a 13mp rear camera but it is better than redmi note 3 16mp camera and front camera is 5mp
2.The battery life of this phone is very good almost give you 2 day backup in heavy usage also.
3.It comes with miui 8 so it contains many exciting features like dual apps, night mode, child mode, guest mode etc
4.Duraebility is good I drop this phone from 3.5foot height but the glass is not cracked but I recommend you to take a screen protector
Cons
1.The stocks of this product is very limited and sold out in 2-3 minutes.
2.You have only 1.5gb free ram out of 4gb available in this device.
3.Somwtimes it restarts itself when you do multitasking