The document discusses the difficulties in integrating with different hotel Property Management Systems (PMS) which can take months and significant costs. It introduces the Impala Hotel PMS API which provides a clean, modern and well-documented JSON API to transfer data to and from different PMS systems, allowing integrations to be built in minutes rather than months. The API aims to make it easier for apps, hardware and other systems to get the hotel data they need while also providing PMS vendors with an easy revenue stream.