I was pretty skeptical of Cardpool after reading so many negative reviews. However, almost all of the reviews from sellers were positive (and they have an A+ rating from the BBB) so I decided to send Cardpool $300+ in various gift cards last week. I put tracking on the package to keep an eye on it, and just like the website promises, I received my Amazon gift card via email the day after the cards were reported delivered. I'm very happy and I will definitely use this service again.