This document discusses the CASALA Living Lab, which conducts research on delivering feedback to users about their health, home security, and energy usage using sensors in ambient assisted living homes. The CASALA Living Lab has multiple stages, including virtual environments, a facility called Great Northern Haven with over 2,000 sensors collecting data from 16 apartments, and community deployments. The lab aims to understand user behavior from real-world data and provide feedback to empower users. Challenges include lack of market awareness for ambient assisted living and siloed funding, while successes involve end-user involvement and driving education and adoption of these technologies.