This is just for open access, not for publication. I haven't published with Nature since it was owned by Macmillan (rather than Springer Nature, the current ow

This is just for open access, not for publication. I haven't published with Nature since it was owned by Macmillan (rather than Springer Nature, the current owner) and I think the publication fees were ~$1500. My experience was that the editor and reviewers were more focused on the impact of the work rather than the technical quality. It was all about whether the work was Nature-level status; there were no changes to any of the analysis or the body of the paper, just the intro and conclusions. It felt slimy so I decided to only publish in non-profit society journals from then on.