Not perfect, but excellent nonetheless

Positives: large, bright display HD properly calibrated; reagent system; possibility to play recent 3D games (like Dead Trigger 2 fluid); beautiful pictures when good conditions; GPS performance; GSM and good wifi reception ... etc ....

There are still some negatives, but not prohibitive: I have not seen anyone complain, but Bluetooth is slow during file transfers, more than two times slower than on my Sony Xperia U yet shabby; Sometimes system freezes, then you must force a restart (long press on power button); autonomy is poor in heavy use (but really excellent in standby compared to my two previous smartphones); photos are quite "noisy" in bad lighting and autofocus is a bit slow (blurry photos are not uncommon)

I can only recommend this camera to those who have a limited budget, and even more, because the quality is there.