Iam recently used this samsung galaxy J2 Ace smart phone. Iam sharing that experiences. The internal storage of this mobile is very low. And the system files are big in size. So we can only install small amount of applications. To overcome this we have to use a high storage micro sd card. And this mobile have only 1.5gb ram. So when we are running high definition applications, the phone is sometimes getting hang. When we are talking about the battery backup, it is also low. We have to charge more and use less. Sound quality of this mobile is average.also the style and design is adjustable.When iam using this mobile these are the problems faced by me. So friends iam not suggesting this to anyone.