Is it profitable to advertise on Airbnb?

Your ROI will depend on the expenses you've used on your listing. For example including an additional bed adds an extra guest which increases your nightly rate and variable costs.

Other examples that can lead to a high ROI are upgrading your interior and exterior design, changing the paint and flooring, and including or upgrading additional amenities which create an experiential stay for your guests that increase your occupancy rate.