This phone comes from a well known brand Motorola, so expectations are quite high from rest of others.
But This phone has Qualcomm 410 chipset which is very ordinary and 2GB of Ram and one more variant 1Gb of Ram is also available more or less this phone has best stock android experience with minimum price tag.
This phone has some advantages which are enlisted below.
Good Connectivity
Good front Speakers
Great Battery Life.
In account of some negative aspect this phone also has that.
Not so good display
Not so good Touch response
Not soo good Call Quality
In future bu officials Moto G3 will receive Android 6.0 update via OTA.
So advantages are there.