Sound usually not great and often no sound since

My experience with this device go only toward "dissatisfied".
Device is connected (with optical cable) and was not particularly pleased with the pitiful, very high "tinny" sound of the instrument. I immediately thought: not much better than the TV itself now and then in action scenes, comes as something good sound over.. But my overall impression = Forget it!

Then the hit. During normal TV look (so no DVD, etc.) during the advertising constantly falls the sound completely and usually does not come back (which is known to support) !!! You have to pull the optical cable and plug it in again or the input switch (eg. From AUX to DVD and back again). Bothersome and annoying! :-(

The support is also standard. I was even pushed away from the phone (from the reception).
So, I would not buy the box again.