Good build quality first of all I am using it since last 1.5 Years it has not got any kind of problem. Battery life is very good even after 1year. I am using the phone without screen guard since 1 year.
I had not use any screen guard on this phone. It has not got any scratch till now. Flip cover provided with this is excellent.
Sometimes the phone heat up but this is not too much heating that should be considerable. I am getting updates regularly.
The weight is high thats the con.