The additional guest fee didn’t work for us so I just charge the higher rate now for a max of three guests. We used to charge $119 for two people (assuming a couple that slept in one bed) and $30 more for three people. People would say two guests and bring 4 and only pay $119. We now charge $149 for 1-3 guests and are very specific that four guests are not allowed, full size bed only accommodates a child or petite person, and sleeping on the sofa is not allowed. Outdoor security cameras are used to verify guests, visitors, and only the max three guests are allowed on the property. No “visitors”. I tell people when they book and offer free cancellation if they don’t agree to the max three guests or outdoor cameras. Our listing is a second home so if it rents great and if it doesn’t I go there that weekend. This results in higher quality guests and less stress and excessive cleaning.