What does shadow /V actually do?

According to shadow:

C:\Users\mark.henderson>shadow /?
Monitor another Remote Desktop Services session.

SHADOW {sessionname | sessionid} [/SERVER:servername] [/V]

  sessionname         Identifies the session with name sessionname.
  sessionid           Identifies the session with ID sessionid.
  /SERVER:servername  The server containing the session (default is current).
  /V                  Display information about actions being performed.

/V is meant to Display information about actions being performed. But for the life of me, I cannot get this flag to do anything. Technet is no more helpful than the above text; and neither is google.

Performing, say shadow 3 /server:myts1.example.com /V just shadows the account normally.

The description seems a bit off.

The correct command is:

shadow /V [n]

Where [n] is actually a session number.

shadow /V 1

The above would remotely connect you to a session 1. The session number can be found under the User tabs from Task Manager.

A prompt would appear on the session and request the user to either accept or decline the remote control.