The Galaxy Grand Prime is modeled as a low end phone with remarkably horrendous specs. The Galaxy S5 Mini and the Galaxy Nexus has better specs than this phone and those phones are 2+ years old. Where this phone shines is in its cost and LCD Size (5').
Cheap; Decent Camera; Good Battery + replaceable; Good Call quality and reception
Cheap Plastic build quality; Text messages do no show; Slow and buggy UI; Horrible resolution; Cannot handle high workloads (freezing/overheating; Few Features