And wow that was a good tough instance. So far each instance has done a good job ramping in challenge and difficulty and so far this one has not disappointed. The most surprising thing for me was after and epicly long struggle with a boss where we had to constantly change utility skills for each of his phases, rezzing allies from downed state innumerable times, and when we finally beat it all of us exclaimed with joy. And immediately following we were ambushed by more mobs. THAT WASN'T THE LAST BOSS?! Our entire group echoed this sentiment at once.
And the last boss himself, while not as difficult proved just as fun and a really cool fight. For anyone that hasn't done it yet I highly recommend this instance. It's pretty tough but just get some hearty people to take it on. I did this in a pug group btw so it is possible to do with pugs.