I had it on SAL-IAH two days ago. Only the movies worked and they were halfway into it by the time we were able to start viewing so we had to watch the end of a movie then start over to see how it started. Even after we were over the US there was no signal for the live channels.

The quality though is great and probably well worth the $6 fee once all the bugs are worked out. As it is right now I'd save the money if it's a 3 hour or less flight.