I had read the opinion from another customer so I took care of my quilt airing 24 in another room (balcony lol). After that, no problem ... the duvet in place for 2-3 weeks is comfortable even if it is a bit noisy when moving but nothing too bad. She's hot but it seems sufficiently well ventilated to not sweat too much, so it's going.
Product Amazon, I trust perhaps wrongly ... any traceability of feathers or message about their treatment or choice of animals and when they are high. There I really do not like !! I prefer to take a duvet which animal is more detailed and we are sure of respect for animals ...
In short: comfortable, maybe a few allergens, no details on the origin of feathers except the country of origin, reasonably priced for the duck ... But for once I know not advise you to buy or exceed your way.