Amongst other responsibilities at my company, I manage the systems used at our firm of mostly non-computer savvy employees. We have tried seeral differnet time tracking systems, but none of them have been able to integrate time tracking and invoices as easily as Harvest. We have loved every facet of Harvest and only wish there was a SalesForce.com integration.

I love how simple, efficient, and intuitive the whole system is! Thanks Harvest!!!

I'm not a manager implementing this time tracking service at work so all I really care is if it is intuitive to use and does not distract my work. Harvest does it well! All I need is to select the project/client and write down a little description on what I'm going to work on. There are times I forget to start/stop the timer, but it is very easy to go back and fix such mistakes. It integrates with the widget on my Mac OSX well as well.