I usually use amazon for buying electronics. The product which I bought most of the time were mobile phones. They were easily available through lighting deals and yea it was pretty much easy getting a phone through these deals. Calling them a flash sale, in which its next to impossible to get a product Amazon came over it. It is quite convenient now.
The only problem I had with the delivery time , still that isnt upon their head , its upon the courier . And another thing they could just improve the packing . I bought 8 phones and all of them were just in some plastic bags . So I was a bit worried that was the product fine or not.And if we talk about availability of products I had no complaints.