Our first foray into heroic 25m raiding was... interesting.
Most of the fights seem a lot easier than the 10m version, although I missed the first 4 bosses.
Blackfuse was slightly tougher on the belt end - we started with 4 hunters and if one person made a mistake, it was over. For some reason, the 3 hunters left couldn't quite cover for the missing person (or perhaps we weren't on the ball about it like I would usually be if I know Ane is down), unlike 1 person covering for the other in 10m... possibly due to the unfamiliarity with each other more than a DPS issue.
Between connection issues, pressure from the rest of the team and the higher likelihood that 1 of the 5 of us would make a mistake (compared to 1 of 2 in 10m), we ended up using 5 hunters to get it done. Definitely not ideal, considering it's a rare occasion when you would have 5 hunter mains available at the same time.
Paragons was a wipefest. Since only 3 of us in Zero Yard Range had managed to get in on a Non Combat Pet guild kill, there was a bit of a learning curve for the rest of our old group... Although it wasn't always the uninitiated making mistakes either.
By the end of the night there was frustration all around - people complaining about the mistakes, people complaining about other people blaming them for the mistakes or bad DPS... not really the greatest environment for fun times.
All I can say is: hooray for custom chat channels - chatting with people you enjoy playing with makes all the difference to your mood when you're wiping constantly. Hopefully we can get to know our new guildmates fairly quickly so it doesn't feel like so much of a guild vs guild atmosphere (whether imagined or not - NCP outwardly have been quite welcoming to most of us!).