I bought the moto 3rdgen ( 2gb ram version) in August '15. It's almost a 9month old now and its wirking fine. This phone was getting sluggish and hot after the marshmallow update, but then a nother short update came and the problems are now fixed.
Performance- good.
Durability - very much.
Battery - It was much better at first, but now a days it drains faster.
Gaming- you can easily play hd games.
Camera- one of the best in its segment.
Sound- loudspeaker is damn good but yhose pathetic headphones.
Looks- Its a great looking phone.
Display- the white colour is on the yellowish side, but not that much.
And you will get the android update faster than others.
Overall its a good buy in its segment.
