Recently I bought this phone from nearest Samsung store and using it amazing features and having fun.
It is an budget phone with strong camera configuration this is on of the main reason behind my purchase of this phone.
Also its metallic design and stunning look makes it more affordable.
Things which I like in this phone is its excellent rear camera which Samsung has put 13 mega pixel, good battery backup 3000 mAh last long for 21h in 3G mode and decent configuration with 1.2 GHz snapdragon 410.
You can avoid this phone for not having strong RAM and fingerprint scanner because this is the only drawback of on7.
Also its internal space is only 8 GB which I think quite disappointing, But you can expand it upto 128 GB demanding on you.
I choose this brand because it has everything in this on7 phone for an low budget customer who wants good camera and decent configuration.