As my, friend recently purchased Song xperia Z3+ Dual and the xperience after using for 1 week is worst.He faced many major problems and I will list that problems here one by one.
1: Color Shadding on camera.
2: Touch screen-Unresponsive.
3: Phone charges too slowly-If you have to charge your phone fully then wait for 10 to 12 hours coz phone usually takes 10 hours for 100% charging.
4: Issue while connecting to wifi.Signals drops everytime.
I have listed all the issue which ny friend has faced.I dont know if this issue can be fix or not.But from my opinion better not to buy this phone .If ths issue can be solved then will edit ny review and surely give 5 star rating.