It would be great if you could assign tasks to several users or user groups.
We use Toggl track for time tracking in out IT projects and we have project management-related tasks and development tasks. We don’t want our developers to have to scroll through 40 project management-related tasks in order to find the 10 development-tasks. In other time tracking tools you can assign tasks to a specific user group so that only this group will see the task (and not the others assigned to another user group).