SAMSUNG GALAXY J7 is no doubtedly a budget smartphone.But its sound quality is not as good as we want.after some month of usage it runs through some cracking sound.as it is an android device so it is user friendly.but in many times it hangs and get slow.its style and desgin is no doubtedly very good.it needs some feature extra though it had a large amount of features.it needs fingureprint lock feature.it is not as reliable and durable than any other phone.so in my openion in reliability and durability it is no good.value for money is so much high.it is a high range smartphone for some peoples.