they are marathon fights that are simultaniously harder and less stressful than savage. A lot of the challenge comes from recognising and executing perfectly the loooooonnnggg list of complex mechanics while being able to put out sufficient dps since there's lots of checks

its easier as in there's less stress as you don't have weekly lockouts, but harder because you need ot be skilled and execute perfect coordination

they are also a visual and audio spectacle.

The hardest part of ultimate though is, like savage, finding a competent group