So when I ordered, I actually got one that had a few beads spill over--good thing the bed sheet i was using is dark gray so it was easy to see and take a photo of. I told the customer service and they hadn't given me a hard time--they took action immediately and processed me a replacement item, so 5 stars for service. It also didn't take long to receive both times. Free delivery so that's great, vs other mattress/linen brands/companies that charge like 25% of the product cost for delivery.
The downside though with this product is the washing (it might destroy your machine or will be complicated), so when I first bought (the defective one), I hadn't ordered a duvet cover because that is almost as expensive, so the total cost of blanket +cover is too high. But I hadn't checked before ordering and only when it was laundry day, that this might be complicated to wash. So when I was processed for a replacement item, I had to go ahead and order the duvet cover (which is super nice but oh so expensive).
As for the item itself on its claimed function to help me sleep--yes, it's true. I have insomnia issues time to time, and always need a bottle of melatonin by my bedside, but since using this, I don't remembering taking a pill. As for its claim to "deep" sleep though, I'm not too sure--I use a Xiaomi activity (step & sleep) band and the Deep Sleep recorded range from low to normal, and hadn't reached as high as when I'd had good sleep before before using the weighted blanket. So it definitely has helped me in "falling" asleep faster.
If you have trouble falling asleep, do take a chance on this item.