Loaded it in X1b Producer (64) on Win 7
Appears to show a true representation of the track level with the calibration 'screw' set at -12 vu while my fader is at unity, but adjusting the fader does nothing to the reading on the vu meter, up or down...
Toggling the 'on' button to off mutes audio on the track and the meter freezes at the last position it was reading... Same with stopping the transport, the meter just freezes where it was last positioned.
As the song fades out, the vu meter fades with it.
Applying the plug to the same project in 8.53 Producer (64) caused the audio 'to to jump jump and and stutter stutter' a lot and the needle was all over the place.
Don't have a 32 bit machine to try it on... Maybe someone else can chime in on that...?