My older cat and my 1 year old love this -- they carry it around with them and they fling it and wrestle with it. Some of the feathers came off the 2nd day, but it looks like you can sew them back on with the sewing machine making sure no threads are lose to get choked.
My cats LOVE this toy and it's more natural than a plastic toy for them. The feathers do get pulled out quickly, but that's just cat "hunting" behavior, which is fun for them. After the feathers are gone, the rest of the toy is played with and lasts for many months as their favorite toy.