Thanks for the feedback! You’re right that it’s not a 1:1 replacement for TickTick/Todoist yet. That is why I used the word 'alternative' rather than 'replacement' in the title.
The core functionality is already there, and I’m working toward 70–80% feature parity over the next year or two.
I am also glad to know what particular features you miss so they will be more in my focus