Hello there, @Mark_Demark 
Many thanks for sharing your thoughts with us!
Unfortunately, the issues with the text in the generated images might occur and there is no way to completely avoid it now. I am really sorry!
The Refresh an image button could be a nice alternative and I’ve added this suggestion to the Wishlist. If this request gets more votes, we’ll try to consider it in the future - Refresh image button for generated posts.
As for the limits, there are no restrictions on the number of the post generations starting from the Pro plan 