I am using amazon more than two years it is very supportive and very easy to operate the customer response service is very good and the delivery of products are generally on time except one time for me. amazon provides cash on delivery facility also thats makes it more comfortable but some times it shows more higher price of products from other e-commerce site but the quality of product is generally good It is a must have app in the android device I recently received my new mobile device redmi note 3 I have trust on amazon