That list that you saw it down, was by me, and as of this post it is currently working. The channel list hasn't been updated yet but it will be updated a couple of hours.
As for it's reliability you would have to check through the channels issues forum, but from the times I've looked in the past it was always up, until late last week but has resumed as of this morning.
Channels will be up and down all the time, but that whats makes NFPS/Rocket/IPTV66 better is the channel lineup as there are channels that appear that aren't on any other provider, and once they fix there picture quality it will become even better.
Not fully sure I answered your question though.