I would never get another xiaomi ever again! Xiaomi / miui do not release upto date android versions, they don't like fixing bugs on phones which they class to be "old". I've got the Redmi 1 & it's been over a year since a Bluetooth hands free bug was reported and we're still waiting for it to be fixed!
Ive only just upgraded to Miui v7 on my xiaomi redmi, just remember its still only based on android 4.4 ! Miui seem very slow on bringing new stable updates out. I will not be getting another xiaomi due to this fact.
Just a warning on updates for Xiaomi phones. I've got the redrice and its a great phone but if your expecting regular official miui updates then font hold your breath. I'm still waiting for miui v6 , it was due February!!