Although Document Node (https://documentnode.io) is still in Alpha, I sold the first annual subscription to a local coach ($225.06) in Perth, Australia!
From the Kickstarter campaign ended in Feb, I got 49 backers. It was not a huge success, but I was satisfied with that because it was a completely new product, and no decent marketing activities were done at all.
Guess what! After walking in the dark for a long time, and the product entered the alpha phase, I began to see the dawn of the front.
If you have any questions please let me know. I would love to share with you!