To me personally, I have 3 issues with the OPO.

1) The size is a bit too big for my small hands. Would prefer a 5'. But then again, the large Full HD screen on the OPO is really nice to look at.

2) No nice casings to buy so far.

3) The replacement backcovers cost USD$50. What the heck?

When my OPO is plugged into charger for charging, whenever there is incoming call and and i answered (without disconnect the cable), i totally cannot hear anything.

I unplugged and restarted the phone. Still same thing..

Have to wait few minutes until the phone cool down then only can make and receive call again.

Do you guys face this problem too?