The biggest problem here is measuring quality - none of the obvious metrics really correlate.
That said, sorry you had a bad experience and we will strive to make sure in the future you have a good one.
The top left of the video and your clipboard should give you a pretty good idea of the metrics you should be tracking.
I'm on a high end gaming PC with oodles of RAM / SSD / i7 on a 50 down 10 up connection so I don't think that watching a stream in 1080p would tax my computer too much.
I also don't think it was the NASL team's fault because the same thing happens on other streams periodically.
It seems to be a bandwidth issue from justin.tv to the end user but it could be anything, all I know is that it is quite annoying.
The next few days everything worked great again.