My cousin owns this phone and it first it looked and worked good.Everything is working good with no lags.
The processor comes with this phone is 1GHz cortex-A5 Qualcomm MSM7227A snapdragon processor.The main problem is heat generation. If you are working in internet continuously for 5 to 7 hours then phone is getting hanged.
The sound and camera quality is not so good.It provides 768MB RAM which is Insufficient now a days.
At that time Samsung is rapidly growing in Android market. That’s why my cousin choose this product.