I have only played with this for a few minutes - but the user interface is certainly not intuitive. Took me several minutes to figure out how to delete a task from their sample checklist. Some of the icons you have to tap seem to require very precise touches. And the help info is very basic - did not help with my delete problem. Other than the sample checklists - if you have a list management tool you like, stick with that.
Android Marshmallow Updates
Disaster Alert (by PDC) - Current global disaster info on an interactive map