The key benefits of private rentals include cost savings from avoiding property management fees, direct communication between landlord and tenant, and a personal relationship that can lead to longer tenancies. However, challenges include the time required for managing the rental process, the need to understand legal responsibilities, and the risk of tenant issues without a property manager to assist. For successful management, it is crucial to create a comprehensive rental agreement, screen tenants carefully, maintain open communication, and be familiar with relevant landlord-tenant laws.