Our first attempt at Gharj on Hard Mode - Surprisingly easy, and Annihilation Droid XRR-3 was easy too.
OpGroup was comprised as follows:
I forgot to take screenshots of the loot, but it was good.
We had a bug on the Pylon boss, and could not progress any further, but I had a nice chat with Customer Service and they are looking into it.
Anyway, it looks like we will be making progress now, but its more important to enjoy the game and the people that you play with.