I was impressed with the ease of use of SimpleMind and the fact that it does what it says it does. I would however suggest that they put more emphasis on the social aspect of mind mapping and less on the visual side. Also there should be a better integration with other tools (Evernote etc). In general I liked it, but would suggest that they add more focus on the social aspect of mind mapping, especially on how it could help teams collaborate better. I did notice though that there was quite a bit of lag time between entering an idea and seeing the results appear on screen.