I purchased this product last year in July. For few months it worked very smoothly but now after around 7 months the touch is not that much effective as well the speed is very low.there is always insufficient space on the device.
Look wise the phon is quite good but feature wise not satisfactory.the camera is 5 mega pixel but it is not at all good at night.the front camera is a waste.I would suggest you to find another option in this range of cell phons.
Sometimes the usb port does not work as well.