Directory submit is good for promoting a site and it also help to traffic increment because your Website targeted keyword is add on the directory submission it generate mini mum basic traffic to help your site.
it wont harm for sure so just give some time to directory submission also beside other factors mentioned here
Directory Submission is good Off Page Submission activity and it's will helps you to increased your SERPS. but don't submit your site with same anchor text and don't do spam with same kids of targeted key words. and keep do rolling based Directory submission work it's very effective instead of thousand submission in few days. and submit your site with Manually way.
Directory submission should still play a significant part in website promotion. Take your time and spread submissions over a few months as a kind of background link building activity.
There are many who questions about directories submission and their advantage. I would clear them the fact that directories (which are really good and authentic) will help you get traffic as well as good conversion. The matter is that you need to find high PR and high Alexa ranking
Directory submission can be a great way of getting links with some of the keywords you want to target. You should use directory submission as one of many methods of link development.