Amazon is one of the best online store in the world. this is not only told by me but by thousands and thousands customer world wide. 100% genuine product and fast delivery and the main thing is that it mainly deliver your product one day before the delivery date or may be less time as possible.
Another main is that Amazon update its product prize according to the market prize which is good but other online stores did not do so. I have also purchased 2 mobiles, one laptop and many other things and always Amazon give me genuine product and I am happy with the service.