Absolutely. the ability to set time-based reminders is critical functionality for a to do app.
4 votesPam supported this idea ·
Wunderlist has this capability and I would continue to use it that tool except I can't access the web site from work.
I agree that I would love to see "sequential tasks", which is what I think you're describing.
However I would also like to be able to have nested tasks. To me a nested task is one that has multiple sub-tasks. For example: The task "Change Beneficiaries" could have sub-tasks which list all of the places the beneficiary needs to be changed. I can change it on my work insurance and mark that off but the master task isn't complete until I've completed all of the subtasks.