Firstly, I consider myself very experienced in using Task Managers, I think I have used every single one of the major programs out there.
Of all of them, I most recently settled on Toodledo which I have been subscribing to for almost a year.
Now I have rediscovered doit.im and I will tell you now, that I will be moving over to your protgram, its fantastic and is 99.9 percent perfect for me. Regarding the .1 % missing, it would be easy for you to fix and I noticed in the forum there are plans to implement it, but those posts are over a year old.
That is a feature to easily see what tasks have subtasks in them. This would be such a welcome feature. Toodleo does do this well, have a look how they do it.
Thank you and keep up the good work.
... and ideally also to be able to expand the task and see the subtasks in the list (a bit indented)