Personally, i dont enjoy it at all, i only do it for the loot*.
Why make a boss that requires 100+ to kill it, so we get 1 fps making it impossible to play, cant do a normal rotation or avaoid any of his abilities.
Furthermore he is more or less untankable, since he 1 shots the tank now and then.
So we end up not being able to play at all and be dead 75% of the encounter.
Not my cuppah tea!
*didnt even get any loot, not even gold or bonusroll, so i think thats pretty bugged