I have been using this phone since 12 days and the phone is running well as not many other samsung phone. It has a user friendly interface as you familiar with samsung.
Phone has 4 gb ram so it does not hang at all.
Phone is very stylish and also have curve display. Sound qualitg is also impressed me alot and usually samsung have better camera then any other phone.
So all in all in my point of view it is a good phone by samsung with price range of 19, 999 Rs. You can also buy it undoubtely because this phone is value for money phone.