I was given a review copy early into Kontent Machine's inception. Initially, the tool had some limitations, like with KWs and these concerns were immediately addressed by the developers. I've had some other issues which I've spoke to one of the developers about and the responses were very timely and helpful.
Since I started using the tool, the developers have added the ability to scrape from different sources, have added the ability to add pictures and video to the content, and updated the GUI. The content this tool produces is very relevant to the KWs I'm generating content for. I personally don't use this content for $$ site, but rather use it to build mass amount of links with automated software like UD and Sick Submitter. KM saves me tons of time, and I've gladly continued my monthly subscription and have no intention of stopping it anytime soon, unless I plan to stop building links altogether...