Seems very promising, and great-looking too. But the first impression is underwhelming. When you install and run it first, you see a "welcome" sample file that looks like this:
MindMaple 50% discount Not sure if this is intended, but doesn't look quite right at all. Zooming in does not bring order, the text labels still show well outside the boxes, and topics still overlap each other, so that the example is completely unreadable. Hm.