The ability to use it as an internal tool, allowing us to manage staff absences more efficiently than our previous system! It's very simple software which allows for easy reporting of hours worked per day/week etc (which is great!)- however I'd say that there are some minor annoyances with this product in relation to time being set at 12am rather than midnight when you're creating new timesheets or approving leave requests - so if your business has a lot of employees who stay late then this could be a concern. A little bit expensive but once we started using it everything was ok from here onwards. We've found that managing absence days much easier now without having to manually enter them into another calendar app each week.