This is really an amazing plugin. However, it has a deep learning curve, and some may not understand how it works, especially if they are new to WordPress. I am new, but because I have a good understanding of CMS and html I had very little trouble getting around it.
The saving feature in the admin area for adding new listings doesn't work properly. It will save, but doesn't save everything. When I went up to the listing under Comments section it worked perfectly.
I like the idea of adding a category if needed when adding a listing, but there is no way to edit it if you make a typo. You have to save, and go to categories to fix it.
The Submit A Listing page shows an invalid error: Input error: Invalid referer just above the continue button.
The same page does not offer a way to edit a description for the page, so that you can as least let people know requirements they need for submission at your site.
The above small problems tho really do not affect the plugin as a whole and it really is wonderful and that's why it gets a 5-star rating, simply because I checked out all the others and this one is simply the best.