As mentioned before, these text sections are multi-purpose. At this point on the page, we've highlighted the main features, introduced the product and presented some social proof. Many readers will still need a lot more convincing before they are ready to buy.
A text section like this is great for describing your product in detail and telling a story about the benefits it will bring to a customer. It is also a good idea to address potential objections that are on your reader's mind (e.g. "will this really work for me?") in text sections like this.