I am using it since last 6 months.this phone is really awesome . good things about this phone is .
PROS.
1.battery backup: battery lasts more than a day with heavy use like gaming and surfing.
2.display: this is most amazing thing about this phone.its so large n awesome you can play full HD videos.although its 720p but if u put it beside a full HD display like S4 or S5 I bet you cant tell which display is better.
3.Gaming: This is the most surprising thing about this phone . I wasnt exepecting this phone that much good in gaming . I am playing games like GTA San andreas . Fifa 14. Dead trigger 2. Asphalt 8 . without any lag.
CONS.
1.Camera: this is really disappointing. although its 13 mp but dont expect it to be of that caliber.
- NO external SD card. although it has 16GB inbuilt . but it might be not enough for people.
But anyway if you have 13 k and looking for a large HD display. n a good gaming phone .
go for it . it worth each penny