sorry, just saw this - yeah the stream was pretty smooth - 85+% quality till the 80th min or so when the picture just disappeared (the stream was still stable but there must have been an issue on the streamer's side).
One thing to note is that with these high-bitrate streams you have to quit using the internet - even simple browsing destabilizes the stream and makes it choppy ... and I have a pretty fast cable internet ... not sure if that would be a problem with FIOS, but something to keep in mind.