I have been using this device for last 3 months.The build quality of this device is really great.As per the company its metal build but I find it after 3 months it is prone to scraches.Though I have not encounterd any major issue.The finger point sensor which was performing really well showed some lackings in response later.I have updated my MIUI7 to MIUI8.I find this as a very good update in terms of camera quality.There is one more thing I found is screen rotation problem which was previously not there.Even though these few glitches exist I would like to advice to go for this mobile phone as its awesome build quality compare to its other flagship competitors at this price point.A finger point sensor, a 5 mp front & 12 mp mp back with a powerful flash & most importantly 4000 MAH battery under 12k is simply a show stopper.