I have been using Samsung core prime last 4 month
I must say is this phone is the best in this price range
Pros= good camera with HD video recording
Display quality very nice
Sound quality good
Battery backup good
1 GB ram management good
No hang lag no heating issue in daily use
Cons= No HD display
Front camera not good only 2mp
Only 8gb ROM
No light sensor and notification light
Over all its very good phone for daily use. As a primary device