VisionProject is a very useful tool for Project Management, Helpdesk, Time Reporting and Document Management. Since it is a web based tool there is no need for maintenance or updates, which saves a lot of time. The tool is very easy to configure and to work with. Since we started to use VisionProject I don't loose track of things anymore and it makes things much more efficient.
It is web based and you can set up SLAs for the customers
Might be too costly for small businesses