We're absolutely loving Accelo. The skills tagging feature took me by surprise and it's had a huge impact on our resource allocation process.
One of the great features of Accelo is that you can mold and customize it to fit the way you do things, rather than change your methodology in order to fit in with the software
Auto-generating invoices and tasks is awesome. We setup our support services in Accelo’s Contracts & Retainers Module, I just quickly approve the work done, generate the invoice and send it off to clients.