I purchased a king-sized classic down duvet insert from Pottery Barn, which unfortunately turned out to be defective -- the box stitching did not connect properly at the centers, and I didn't notice before I put it in my duvet cover. As a result, over time, the feathers inside the duvet shifted significantly, accumulating at the bottom and leaving other areas under-filled. This has made the duvet useless.
Despite numerous attempts to resolve this issue with Pottery Barn's customer service, including providing detailed evidence of the defect, I was not offered a refund or a replacement for the insert. This experience has been very disappointing, as it contradicts the high-quality standard and customer service I expected based on their marketing.
Buyer beware: if a defect is not immediately apparent, you will not receive support or resolution from Pottery Barn.