Missing some important options

It worked. BUT… it should have an option to (a) make imported posts DRAFTS (even if they were not Drafts in Substack); .(b) use the first image as the Featured Image for imported posts; and (c) option to use import date as publish date so that they’re easier to find (or, alternatively, to set a Category or Tag for all imported posts).

Yes, it times out. Not a fatal flaw, but maybe the ability to set a time-out value (or post import speed) would be useful?

I used it on the smaller of my two newsletters. I don’t know that I’ll use it on the larger one unless the suggestions of (a), (b), and (c) above are implemented soon.