It is an excellent smartphone, meets all my requirements for both games and applications. From my point of view the camera is great, although I wish it were a Sony Exmor IMX214 instead of IMX135. The battery is spectacular, it will certainly last a day, depending on how you use it and how much you play. If you listen to music, browse the Internet, play not very demanding games, it will last all day easily. I use Android 4.4.2 KitKat, and I'm waiting for Android 5.0 Lollipop.
Superb value for money. No other dual SIM phone comes close. Even outperforms the top single SIM phones (including the Note 3) on Antutu. Decent battery life, fantastic specs and performance. I wish it had an SD slot but with 15GB on Google Play I don't really miss it. It would be the ultimate phone if it had the 4000mAh battery of the P780 and an SD card slot.