Just to update all that after exchanging my pre-CNY set to my current set, peeling paint job and shutdown still happen . But the paint job is alot tougher now as compared to my first set. So i can live with this.
As for the shutdown, it had happened twice. My observation of both shutdown is that the phone is warm to the touch. Could it be something inside the phone heats up and caused a shutdown? I don't know.
Btw, any know if there's any apps that i can use to monitor the phone performance and writes a log file into the phone that i can retrieve to review the data? Something like monitor the internal temperature, CPU performance, 3G performance etc and log them into a data file. Maybe can use this to see what's the phone like before it shuts down.
Lastly, any bro here found any after-market case? Really need a TPU type case or risk dropping the phone.