I am currently working in a building with interior motion sensor lights. I work hours where the building is minimally staffed so the motion sensors are activated for the lights.
Interior motion sensor lights are exponentially better than the exterior ones. I love entering a dark hallway and having the lights turn on just for me. It is a very powerful feeling. One day I will have these lights in my home. I relate it to feeling like the kid who is dressed up as Darth Vader on the Volkswagon commercial.