Samsung galaxy grand duos is good camera and very good touch. But bad thing is it's ram is full. 1GB of this ram but not 1 GB it's ram is 804MBS . battery life is quite good.
Hanging hanging hanging.although I did reset factory setting more than one time but useless, I think 1.2 processor are enough to do without hanging.
No extra applications are used the minimum one. Instead I might suggest to other users to go for the custom rom., may be u feel little more comfortable with the official rom.!