Information architecture fail:
No sectioning for tasks or projects -- so you get 10+ and you're gone. You are in procrastination heaven.
Task managment fail (!?!):
(1) You can't add more than about 15 projects - you run out of colours and the screen goes white and the projects are greyed out (?!).
(2) You can't edit tasks after you write them - only tick them off. And if you accidentally tick them, you can't untick them.
FOCUS/productivity fail:
(1) When you miss a SINGLE day of tasks, it's lumped into "Today", so you lose any benefit of focusing (plus you can't edit the date - and if you could, you can't do it quickly enough to be beneficial).
(2) When you are adding a task via a category it's automatically got a date - but then you've got to move it every single time you don't complete it (x50 tasks/day). So this is a waste of time. It should default to no date unless you choose one, or there be a bulk way to select and change dates.
(How can I say this so confidently? I'm writing a productivity course, and I've used almost every to-do app out there.)
