Kontent Machine was probably the best new purchase I made last year. I've been using it 10+ times a day for the past few months without problem.
Since the last time I made a feature request it was implemented within a couple days I'll toss a few others out:
Quality of Life Changes:
Quick Campaign - Allow the user to be able to use the 'Tab' key to set the spinner settings (or have a default spinner option set so everytime I scrape a new campaign I don't have to reset it)
Quick Campaign - If the user hits the 'Enter' key after inputting his keyword it should automatically start the campaign.
Load Campaign - Allow users to either double click or use the enter key to load campaigns.
Those are just small things that would make the UI more user friendly (at least to me).
My dream feature would be a title/bookmark builder that works kinda like the 'About Me' builder only it would allow you to enter a keyword and it would output a bunch of spun titles/bookmarks that are still keyword relevant. Alot of the scraped titles/bookmarks don't read too well. This is pretty fundamentally different than what you guys are doing at KM though so I'm not holding my breath.
Anyways very satisfied with my purchase and I'd strongly recommend it for anyone looking to streamline their content creation.