I have been using CM for a few weeks now. I have not used it to its full extent because I am still lagging in watching the tutorials on their official channel. What I have learned/used so far is quite effective in terms of brainstorming, note-making, and content creation.
Support is quite courteous, contacted once came back within 24 hrs answered my question and told me that my feature suggestion has been forwarded to their dev. team.
Tomorrow an onboarding webinar is scheduled, expecting more in-depth knowledge of the app.

At the time of purchase, I was not sure if I would keep it but now I am convinced that this app is worth keeping. The road map also promises some good additions like:

"On entering of set of keywords or descriptions ContextMinds generates an initial mind map automatically. No more starting from a blank canvas"