The Bravia Link has performed flawlessly under normal conditions. Only when the controller is on the wrong state for the on/off command given that the audio switching goes awry.
Seems to me that the setup for the previous Harmony 650 included a request for info as to which device in your system controlled volume and maybe power for other devices. That was not part of the setup for the 700.
Too bad Harmony doesn't include a "State Swap" command to facilitate the situation. I would think that would be easy enough to do using the soft buttons.....