Hi I am using these product from past 6 months but its performance was not so good.in these phone the sound quality is good and its interface is very attractive and features is awesome but I am very disappoint from its overall gaming performance when I play any high quality of games like asphalt any edition then it lagging more than other phones .but it is more useful for business purpose who wants to make only calls and sending normal msg and E-mails etc and yes it is very easy to use and I like to say that the samsung brand now they are making very classy and stylish phone and these phone design was also good but after 1 year the phone color polish was wanished automatically. so use back cover or flip cover for protecting the polish as well as color of the phone and I think the price is not good for me is a waste for money I got these phone for Rs8500. I really tell u that it is not value for money at all on these price range now we can by more feature phones with solid battery backup more than these phone.ok thank you.