Its been a year since I bought the phone and the problems Ive been experiencing are:
Software problems: crashes frequently, reboots randomly which is very annoying, Chrome crashes after u update it, no updates since 8 months, junk softwares which cant be removed, and advertisements pop up every time u go online.
Hardware problems: most annoying one is that the speaker is placed backwards, so u cant hear us phone ringing unless u keep it screen down., overheats, video quality is 3gp not HD.