Update Warning KitKat creates worries

I have this model for 3 months now. I appreciate its lightness, its large screen, speaker who helps to conference calls. I can still slip it into the pocket of my pants or my jeans, despite its size.

The sensitivity to the telephone network is not as good as my previous Samsung Nexus S or the excellent HTC HD2 (from this point of view). I have not tested the 4G.

The big disappointment is the gateway to KitKat, which poses serious problems. some applications have become incompatible (S View S Cover, Call Recorder, etc.), pictures are less good, and connecting to Bluetooth devices can cause problems as some forums. Conclusion: Stay Jelly Bean and disable automatic updating.