We have used the quadcam in rooms that are 12 meters deep. When you get to the back the quad doesnt get a as tight image. The quad is recomended for rooms upto 14 people (seated in a u seating). Cisco previously sold the speakertrack unit witch consisted of a mikrophone array and two p60 cameras (20x optical magnification)
if its a lecture hall for instance you could combine multiple cameras (Quad in the front and a P60 in the back)
Could you elaborate on the "I capture the entire room with some minor macros for stitching together the 2x quad cameras", Could you point me the way on how to create these macros? This could be a power full feature/ selling point.
Thanks in advance!
Check out Project Workplace as a great resource for some ideas of the sizes of rooms and configuration options.