The better placement option will display your listing in the top of the specific category, while users are browsing the site. This feature should NOT be added initially, you should wait at least a few days to use this feature. If you use it initially, it will not have any affect because your listing is already at the top. This will not Move your listing to the top of the "Recent Listings" on the front page, ONLY within the category your Listing is posted in.