Smart Board/Promethean (did I spell that right?) Experience

To be quite honest, I have had very limited experience with the Smart Board and Promethean Boards. Last semester in Dr. Foxworth's class, we briefly talked about the Promethean board. A lady came in and lectured on it for about 45 min to an hour.. I've never really had any hands-on experiences with these tools of technology. I have seen them at South Forrest Attendance Center this semester. Some teachers solely rely on them (not good), while others rarely turn them on (not good). Where's the balance on this thing?