I left reviewing this for a while to see if it fluffed up more.
It has taken three weeks to really fluff more and I think it is still fluffing up.
The first picture showing the duvet is not the product...the next few pictures are correct, as the duvet has a section that is a loose pocket that runs around the boxed inner section. The outside section is really puffy now and as I expected the whole duvet to be but the inner boxed sections are much flatter with less fill. Overall the duvet has a light fluffy feel but if the whole duvet has been like the outer section, I would have said it was perfect. I had a wool duvet before which was heavy so this is a lovely light alternative. It is a little noisy which I didn't expect as reviews mentioned it wasn't noisy, but the outer cotton material is tough and well made and it may soften with washing.