First let me say, this is a great tool. It now works in many languages and the results produced by the AI are really good and bound to keep getting better.
Everybody should buy this AppSumo LTD and if you go to get a refund, you will surely regret it later in life. I bought this offer because the unlimited copy is a no brainer and I knew upfront I would buy the "Unlimited Editor Add-on" as soon as I get access to my account.

Wordhero is absolutely transparent about the editor, in this offer and also in the app itself.
Limited time offer: Just top up a one-time fee to get lifetime unlimited...
NOTE: The price WILL go up, as we add more and more features. …

That said be AWARE: I buy deals on AppSumo because I can pay with PayPal. Unfortunately you can only buy the "Editor Add-on" if you PAY using a CARD(stripe api).
That means I will not be able to get the editor with PayPal and if ever added, only for a
higher price. Somehow this added a bitter feeling to a really great product.
So, now you know you later need something the stripe-api offers to pay. If you don't have something or don’t want that, you should still grab this fantastic LTD as it is.