I like that it allows me to keep track in one place all my files related with each project / client (invoices & receipt), also its ease of use makes even newbies feel comfortable using this softwares.
It has some bugs here and there but they're pretty easy fixes if reported quickly enough so no big deal as long as everything's working well otherwise! If anyone wants something simple yet effective then definitely try out cd plus software!! Easy handling invoicing/receipting process which previously used paper was cumbersome now we have been able solve almost every problem regarding our business through just 1 pc instead several papers needed before hand.