I like that it allows me to track my time spent in different activities for each project or task assigned so far as well has an easy interface which is very intuitive even if you're not familiar with this kind of software (which most people are).
It's also possible use multiple computers at once since all data can be stored online from any computer connected via internet connection allowing us access our work anywhere anytime without having limitations related office space size availability etc.. Nothing because everything works fine but there isn't anything special about BillAge other than what was mentioned above i think! Easy tooling when tracking client billing requirements;.