This instance was bugged at launch, but the issues have been fixed. The gooblins in the last room were doing heroic damage. They are still very damaging if your resolve is still low (below 175?). Best not to pull more than one group at a time.
At one point, there are two rooms full of skeletal iksar that repop nearly instantly. Clearing the first room a bit will allow you to pull the named that wanders into the empty hallway behind you, thus avoiding the instant-repopping iksars.
This instance is involved in a quest, the best description for the first areas are in the quest write up: Ghosts and Gooblins
For the daily/weekly Advanced solo quest, you must also kill the Goblin King. Picking up where the quest leaves off,
Clear the groups of 3 gooblins each from around the room to limit the King's ability to pull in adds.
There is a normal goblin in one of the vats, and a non attackable Kly assistant at the controls in the center of the rooms.
Approach the Kly assistant, he changes the goblin into the Goblin King, and becomes aggro.
Once he is down, you can fight the Goblin King who should now be attackable. He puts a curse on you that is non removable.
Remember you have a rooting item given to you by the npc that you can use to root any adds that pop and move away from them.