Galaxy grand prime is very slow and laggy, to a level that it is impossible to use. I bought a moto at the same price, with the same hardware spec and the moto is much more responsive.
The speaker volume is also very low, I miss a lot of calls and can barely listen to anything if there is background noise. I wonder how Samsung approved this phone to be released to public. I lost all trust in Samsung after this buy.
And BTW, there is no update OTA, so I downloaded the image for Andoird 5 from the internet, and installed it. Still no improvement, it is the same laggy slow and low volume phone. What a waste.