I have been using amazon.com app since 3-4 years now and I can say that it's best way to shop online. It has over 2bn products and varieties.
I bought Fila casual wight shoes from Amazon.com recently. No dout product is in good quality from Fila and I purches product with 60% discount.
Now that's great but the size and the style is not good as I think, so just request for return and they pick product next day. Also got refund by Amazon in 2-3. Without any complaint and headaches. So happy to shope with Amazon