I bought it in the last week. I could see few problem major: phone is getting heat like a hell. even if you open light weight app like whatapp ( or even if you open single app) its getting heat. minor: There is UI lag in the phone & my phone is also getting stuck sometimes even if you dont open many apps.
This phone is slipper, and we need to have a case cover for sure or else it slips very easily in hand. + Ve: rich & stylish look