I'm not sure if this is the right place to post this. Feel free to move it somewhere else. I bought the newly released Sigma 150-500 from Amazon about a month ago. I wasn't sure that I wanted to keep it, but it appeared that Amazon had a very liberal 30 day return policy with no restocking fee. They offered me a free trial of Prime (as they had been for years) and I took it. Then I paid an additional $4 to get next day shipping. I proceeded to use the lens for nearly a month. During that time I concluded that it wasn't for me. Either one or more of the following was true: it wasn't very sharp, it didn't focus very well, the IS didn't work as advertised, and/or my tripod wasn't stable enough for glass that heavy. For now, I'd rather spend my money another way. Someday I aspire to have good long glass. This was not that for me. In any event, I decided to return the lens. Amazon's online return process is really easy. At the end, they give you a link to print a prepaid shipping label. I cleaned up the lens quite well, during which I noticed that I lightly pocked the front element three places and took a couple chips out of the foot while I used it. I was really shocked that I'd chipped the front because I almost always had the hood on and I couldn't remember banging the front element on anything. I was a little worried they wouldn't take it back. I've never scratched another lenses without doing something obviously stupid, like falling down on a scree field and whacking the lens on granite. I packed the lens up in the original packaging and took it and the prepaid label to my local UPS shipper. After shipping it, I realized I'd forgotten to include a copy of the original shipping slipping slip as the directions said. I called Amazon and they said it wouldn't be a big deal. The lens arrived at Amazon on Friday. I got an email today, Monday, saying that they'd processed my order and credited my card. They credited me for both the lens and the cost of shipping. I paid nothing to try (and damage) the lens for a month. I'm really positively impressed. Amazon may not have the best prices on camera gear, but they seem to have a fabulous policy on the stuff.