I like him vicariously through posts other people have made about him:
When I hear it explained through other posts about his hypocrisy, his internal struggles with what he's doing, his ideology about the desire for a new civilisation and his anger at the destruction of Hopeville, ect., I think he actually makes a compelling character.
Problem is it takes a lot of digging through layers of metaphor and hours of dialogue to find this. Like usually I'm a massive Fallout Nerd who spends ages trying to dig through the lore to make up my own interpretations, but with Ulsyess I often feel that this effort is not worth it for a single character.
Ulsyess is one of those characters I'm more than happy to appreciate through other people's interpretations.
Apparently the original goal behind Ulysses was that he was meant to be a companion in the base-game who was sympathetic to Legion, but could through the Courier's actions be convinced that the Courier could act as a unifying symbolic figurehead for a future civilisation in the Mojave, and rally behind other endings instead.
I feel like this actually makes a lot more sense for his ideology and the way he's written. By listening to Ulsyess the player would get an interesting nuance about the future of the Mojave beyond short-term material gains.
I think putting him front and center of a DLC and the overarching antagonist of all three games kinda weakens him because they need to put a lot more mandatory BS in to justify his existence as a major antagnoist.
Source:
https://web.archive.org/web/2020052..._writer_and_former_unlucky_schlep__Part_3.php