I did.

Speediest run:
Run past all trash to the 2nd boss. Kill trash that follows. Kill boss. Run past trash to the entrance of next boss's room. Kill trash then bone bose. Get to the last room, kill the boss just before twins, then twins.

My build was:
Mag Sorc
2 Skoria, 5 Julianos, 3 Willpower, Lightning destro, Maelstrom Fire destro.

Front bar
Crystal Frag, Crushing Shock, Empowered Ward, Inner Light, Clannfear, Destro Ultimate
Back Bar
Power Surge, Elemental Blockade, Lightning Flood, Clannfear, Flex spot (Streak on trash, Elemental Drain on bosses), Overload
Overload Bar
Empowered Ward, Dark Exchange, Inner Light, Clannfear, Mage's Wrather

Rotation
Send Clannfear, Power Surge, Elemental Blockade, Lightning Flood, Heavy Lightning attack into Crushing Shock. Use proc frags. Keep Clannfear alive with shield and pet heal. Reapply dots on cooldown. Use Destro Ult whenever ready.

Against the Twins
Send the Clannfear to attack the melee twin. He will eventually be knocked to the side of the room where you can just monitor the Clannfear's health and not worry about the melee guy. Focus down the caster until he's at 10% then switch to the melee guy and get him down to 10%. Then kill them both (bad mechanics if you kill one long before the other). Against the caster, avoid red and flame trails. Stay outide the inner ring. The biggest problem will be if you let your Clannfear die a lot. Keep a close watch on his health.

You could also solo all the way to the boss and then call for help in guilds. Lots of people would be happy to jump in to quickly get a helm. They may even give you the best drop for doing most of the work.