I'd like to suggest some modifications from my first impressions:

1. In my case I wasn't able to interact with the workspace on itself until it was activated by J and K navigations, then I was able to write by i. The ? menu Didn't make it immediately clear so had to test every button until I got it active.
2. In th ? menu, e is missing.
3. "+,=" and "-,_" in the ?, together since they seem to do the same.
4. There is no clear indication in the ? on how to create Workspaces and Todo items, only how to manipulate them once they have been created.
5. A tutorial!; Maybe a video tutorial would help I know is Vim-oriented and I know the vim-motions and basics but other than that I haven't been unable to use it at all; The ? Doesn't explain how to use it. (Yes, I read the documentation)