TC's billing categories dovetail replicate architectural project phases (I'm an architect), which makes it an excellent choice for creating invoices or transferring time/billing info to accounting software like AccountEdge or Quickbooks. Customized invoices with .pdf backgrounds are a great addition. I've used this software for 5 years and have complete confidence. Excellent reporting and analysis tools, which I particularly rely on when working on a fixed fee as far as my accounting software, but want to keep track of my hours per phase and overall hours on a given project.

Pandaware development is rigorous and support is first class.