I played with an iPhone app[1] version for a while and was able to get moving pretty fast. It makes text input feel like a game. Also, I realized that a lot of the colors are customizable in the settings.
Looking into the project further, it looks like it was run by David MacKay's research lab (Inference Group) and he unfortunately passed away a few years ago. Will continue looking to see if I can find anyone still working on it. Most interesting innovation in input tech that I have seen in a while!
Do you use Dasher for coding as well?
[1] https://itunes.apple.com/us/app/dasher-mobile/id1304772617