This is the phone my sister owns. Very bad performance by the phone. The phone has 512MB ram of which 470Mb is available and has just 1Ghz single core processor.It stuckes on every touch. Here is complete review:
Screen: Screen is average as there is no IPS the screen don't have any glow on it.
Sound: Sound is good as samsung earphone and speaker quality is good thus the sound is very good
Android: Android is 4.1 and highly customised by samsung thus it is very hard to use the phone, there are lots of bogus apps like chat on and other those keeps on eating ram and doesn't let anything to run smooth on the phone thus the phone lags on every move.
Processor: processor is just single core thus no multitasking is possible on this phone. I have seen it hanging while using messanger and whats app at the same time.
Touch response: touch respons is also not good thus it does not give a feel of soft and smooth touch
Gaming: Not at all for gaming, you will beat your head while playing games on it .so dear gamers never ever think of gaming on it