It is perfectly ok for buying simple and cheap things. I have cables, nightstand clock, extension lead, bike light, foldback clips and such nicknacks from Amazo

It is perfectly ok for buying simple and cheap things. I have cables, nightstand clock, extension lead, bike light, foldback clips and such nicknacks from Amazon. The same crap you'd get elsewhere, in relevant shops in your vicinity or webshops alike. One click and its there next day. Also the return experience is typically good if you run into something you don't like. For important and quality stuff yes, people should go elsewhere. (Ok, I had 2 pieces of important items from reliable brands from Amazon last year - e.g. Samsung SSD, not dozens of TBs though of course : ) -, but that is an exception to the rule)