Really liking what i'm seeing coming out of Serif. Affinity Designer interests me a lot but the sticking point in me switching for me is the inability to export AI files back out as AI files. Many customers of mine need the ability to work on edited AI files. Many will want to do the basics but hand it back to me if they need extensive alts.
Obviously, Serif's creation of AD is to attract Ai users away from Adobe and give everyone an alternative, good on'em too.
But the addition of "Export" or "Save as AI" could be added in a future update your user numbers would increase beyond belief.
jk