I agree, i considered making a thread similar to this actually. At first, I was nervous when i looked at his 28k health, but then i started realizing that he had very little damage on me. With Dorne healing me, i only ever got to half health, at the worst. Only took one try.
I found Gearbox, Wraith, the Sergeant we had to fight before Tavus, the imperial version of Havoc and other bosses to be much harder to fight than Tavus.