Using an auto-submitter will work?

A few months back, I use two free web directory submitters in web directory sales namely, the Fast Directory Submitter and the Xtreme Directory Submitter. However, does it guarantees me that the links have been submitted just for doing a quick SEO using any of these two softwares for web directories? Last time, I have one client who wants an SEO service for his five websites. He has paid me $15 after my services deserved a job well done.

It's an honor that auto submitters really work, but there's a catch. It could be a "BLACKHAT" attempt. Just only a thought for myself but it's really fast and could save your time. But through manual, it is legitimate but will cost you more time to finish the project. It really depends on the strategy if you really wanna use it or not.