The Jelly Beans experience is fluid, the phone responds well. No crashes or applications that end abruptly, except that does not Navfree is launched and needed a reinstall ...
The phone works perfectly, no network problem.
It is lightweight, and robust air.
Alternatively, for less: the screen is really low end. The resolution almost hurt the eyes when you're used to a phone with a better screen. Even the text is pixelated. If this is not what matters to you, then of course it will not be a problem. Everything remains quite visible, but for someone who is accustomed to a higher resolution is like playing a game of the 90s after playing a game last cry.
The GPS really is struggling to hang on. For now, I have not yet succeeded. I would have to brace myself seriously, I install some applications dedicated to GPS tests and adjustments but for now, really, it did not work ... It remains true, however, that nowadays, many phones require settings before the GPS function optimally, especially Chinese phones with MTK6589 chip (the "famous" affordable quad processor core).
The camera is more than mediocre, but with a 3 mega pixel, so do not expect a miracle! If you buy this phone, it will not be for the camera anyway ...
The rear panel is very difficult to remove. It must have very good nails and have developed a technique with both thumbs to open!
Conclusion: This phone sacrifice some elements (screen, camera) to prioritize others (Jelly Beans, dual-core processor, 512 ram). The phone is faster and stable therefore to perform telephony tasks everyday but cons, it is not a visual treat. This is a phone fully functional but certainly not a phone that lets you surf extensively on the web, watch videos or play games with the detailed graphics. The compromise is not necessarily bad, it can even be the dream phone for some people but you have to know what one is committed.