I use Todoist in a very light weight fashion. I add tasks and they sit on my screen until they're done, basically identical to a text file. I've never used the points, projects, labels, etc.

It does one thing a text file struggles at: scheduling recurring tasks and adding notes to a recurring task. I have annual reminders for infrequent, but important stuff. For example, I have a recurring annual task to review my insurance. Each year, I add context and details that are easily forgotten. Then, when the reminder comes up next year, I can refresh my memory and complete the task quickly.