Amazon is my choice over all other apps in the similar space without any second thought. They are reliable, safe, fast and huge.
As a customer I have lots of options, varieties and freedom in amazon which I dint find even in other major sites like flipkart etc.
And even their reach of final mile delivery is astonishingly great and speed ( its shamefull that flipkart doesnt provide services fully to our town and snapdeal takes too much tine for delivery)
The other important feature that I like most in amazon is the reviews section which is large and even one can get reviews from amazon.com if we couldn’t find good number of reviews in amazon.in and also it has place to rise questions directly to the vendors.