I have used Samsung note 2, 3 and even Nokia but moto g3 is worst mobile I have ever used they have mentioned 13 mp but when you take picture it will look like 2 mp for every thing you need to download app from app store like pdf reader word file etc even for recording also. if you want to move file from one folder to another then also you need to download app.
So the main drawback is camera is worst performance and my opinion is suggest to motorolla that is please change the dimensions and mainly phone thickness.