By
mclapp.
March 30, 2009 at 07:22AM (PST)
Fast, simple, powerful: This is the most efficient and useful todo manager I've found for personal use. It is fast to use, especially through the hotkeys, and is just powerful enough--without extra bells and whistles to clutter up your experience that you will never use.
The downside is that it's served by a basically one-man company, so sometimes bugs or service outages can take a few days to get fixed.