I've been a devoted Studiometry user since 2005. Before Studiometry, billing clients was a tedious task I would put off doing for as long as possible. Switching to Studiometry made it incredibly easy to track how much time I'm spending on each project, and makes invoicing for that project a snap. It handles complex Canadian tax scenarios with ease and generates professional-looking invoices. Studiometry has run smoothly and without issues for four years. When I recently ran into a problem when upgrading, Orange Software's customer support was exemplary. I received a response to my ticket promptly, and a full resolution to my problem in less than one business day, with personal service by phone and email. I would not hesitate to recommend Studiometry to anyone looking for a full-featured desktop time-tracking and invoicing program.