Yesterday I showed the program to someone who hasn't used it before. I wanted to start explaining, but then it all seemed to be too complex for her. All she needed was a simple Todo-list to quickly add her grocery list. This is what many people complain about when they first open the app - too complex and not intuitive to use. Once they get used to it, they often admit that 'it is thoughtful and feature-rich' (well, not all of them, but many do). But, not all of those who install it reach that mind-clearing point :)
And, the question is - what to do with it? Make the app more simple just like hundreds other todo/task lists out there? Or, keep the current shape, not without constant improvements, of course (of course!) and have the app for those who seek something more than a dumb list? The latter comes at price of less users using the app. Hard question.