Todoist is nice in that it is very easy and straightforward to use, which is one of the main pieces that people need in order to adopt the use of a new tool across an organization. It is very clear on how to create and complete tasks, and how to set labels, archive tasks, and assign tasks to others. So for those that are thrown off by lengthy spreadsheet project management models, Todoist is a great tool to consider, even for a trial period or demo!
Todoist would not be for someone that wants to plan out projects at-length with more typical Project Management-related software, whether particular to software development like sprints in Atlassian's JIRA, or in design or business roles in a highly visual and sharing-focused program like Monday.com. In these types of programs, you have a lot more visibility and project-focused visualization and feature sets that are required, whereas Todoist's strength really lies in getting people away from paper lists that have you constantly flipping back and forth between the pages, and get you into the digital space to keep track of things for people before, during, and after meetings, or on top of assignments that you have to hit by a particular deadline.