I've used it a few times but only because I know amazon's costs and shipping policies are consistent, and they give you enough information up front on the item page to make a fully informed purchase decision.
Other ecommerce sites frequently have so many additional/hidden charges that I would never want to click "buy" right from the item page. I abandon so many carts when I get to the checkout page because there's $20 in shipping charges on a $8 item, or they've tacked on a $5 handling fee, or they wait until the very end of the process to tell you that the item will ship in 8 weeks.
Maybe it is different in the US, but in the UK the charges being inconsistent is the reason I do not use One Click. (Amazon UK not being as good seems to be a theme in these comments.)
I don't think that's the case for Amazon Prime (UK customer)
In my experience the price shown and delivery time estimate is always accurate, and as a Prime customer the delivery fee is included in your subscription
I'm in virtually the same boat as you. I've been a prime customer for over a decade even and have easily spent over $500k with them (lots of business purchases) throughout the years, yet I've used 1-click purchase a single digit number of times.
I'm using it because I know I have time to cancel it if it's a mistake, and worst case scenario it's very easy to send them back stuff. Just print the return slip.
I used it once. About an hour later after nearly having a heart attack when I saw the email that I had purchased a $5,000 generator. I quickly canceled it, but it would have been such a pain to try to ship that back or even take delivery of it. I disabled it and still do.
Just because it is easy to return things doesn't make me feel good about doing it - it is such a waste. Maybe I should look at it as creating jobs.
hmm works for me all the time... but i'm curious i wonder are you running a standard browser, locally without proxy, from within the US? Not that i'm advocating you must, but curious if you hit on any of these?
Other ecommerce sites frequently have so many additional/hidden charges that I would never want to click "buy" right from the item page. I abandon so many carts when I get to the checkout page because there's $20 in shipping charges on a $8 item, or they've tacked on a $5 handling fee, or they wait until the very end of the process to tell you that the item will ship in 8 weeks.