I would assume other developers would generally give you things they like about using this site, as well as things against it. But you basically have this with every site/store front. So in that regard, you could look into this discussion board (primarily the sub-categories below question and support regarding feedback and tips). Other than that, the best way to know what to prepare/think about when uploading a project can be read in the faq: https://itch.io/docs/general/faq
You always find that link at the bottom of the page, as well.
Hope that helps you.