After reading this whole thread, I fall into the seemingly rare camp of users who have a problem with Netflix audio lag issue. I have done much experimentation and found that it happens consistently when certain BD's are played. For instance, like one of the former posters, Game of Thrones seems to trip it up every time for me. That is to say that Netflix works fine, then after playing an episode of GoT the Netflix stream will ALWAYS exhibit an 850ms audio lag behind the video. The odd thing here, on 9 other BDs I tried, I did not get the same error.
As suggested, power-cycling does fix the problem. So as long as you do not need quick start it will not be as annoying since you'll naturally have a power cycle every time you turn things off. Myself, I want the quick start. Disabling BD-Live and audio enhance does NOT fix the problem as some suggest.
My theory here--one that cannot be proved out--is that there is some java code that is present on some menu systems that throws it into the bug cycle. Not an expert here, so I'm just blowing smoke, but its the only thing that I can think of that would change on different BDs.
Anybody out there that owns Game of Thrones want to help experiment? At least one other poster had it and also has the audio problem.
After finally talking with somebody at Panny who was helpful, they did acknowledge this as a known firmware bug. They said that it will be fixed in a future firmware update if enough people report it. I asked when, or even if it would be the next update and they of course could not say, only that as more reports come in, it will be higher priority to fix.
So - I can still return the thing to Amazon and I am doing so. Like others on this thread, I'm going with the S390 because all things considered, the slow netflix menus are a pain in the butt, and not wife-friendly at all. I will miss the 24p option, but I'll live.
Panny will eventually fix this audio thing for the few of us that experience it, but for now, I'm out. For the rest of you that have no audio lag, and can put up with the slow NF menu system, enjoy the player, I think it is "mostly" a good one.