Yes, Facebook Audience Insights is still available. You can use it to gain a better understanding of your target audience and take your campaigns to the next level. With this tool, you can explore demographic and psychographic data about your potential customers. It helps you understand who your target audience is, what their interests are, and more. You can use this data to create more targeted campaigns that will help you reach your desired audience more successfully. Additionally, with Audience Insights, you can monitor campaign performance and get real-time updates about audience growth and shifts in behavior. This will help you create campaigns that are more relevant to your audience and increase the success of your campaigns.