Supervision is the bomb, and I love it. Still learning to read all the types of meters in there.
Stereo imaging, phase, loudness, waveform, spectrum, frequency bars and charts, everything and then some. Even your own LARGE size time indicator which is very useful.
I feel like buying another monitor for my workstation just to leave Supervision up on one of those monitors all the time.
If only there was a way to make supervision automatically open when cubase starts up. Supervision is in my Control Room inserts.