I am a frequent buyer in amazon and the best thing about it is its customer service. They claim that "no questions asked" for their return policy. Till now I have returned many products and every time they have stood right on their claim.
The product were always great and there were never any quality and delivery issues with amazon.
Deliveries were always on time and I didnt have any complaints what so ever with deliveries of the product.
App and website are very light and with normal graphics.
The service that amazon provides are very reliable.