In AdEspresso, there's an easy way to identify which of your ads have comments so you can engage with your fans and customers. On your campaign dashboard, scroll down to the Relevance & Engagement box. This is where engagement stats from your campaign are displayed, including the number of comments on any of your ads.
Click Comments to open a list of ads in the campaign.
Here you can see how many comments are on each ad, and you can click Moderate on Facebook to go directly to the ad on Facebook to respond and interact with the users who have engaged.
Note: If you edited your ad creative for the campaign, there may be a discrepancy in the number of comments shown in AdEspresso vs. Facebook. Moderating comments is not supported for page likes campaigns.