I like being able to explore open worlds and flying to different planets. Plus, I kinda like science fiction so I really can't complain.
Most of the main settlements look amazing in their own right like New Atlantis with its Sci-Fi utopia aesthetic, Akila City with its rugged wild west feel, and Neon's cyberpunk vibe.
I've grown to like some of the character's like Barrett's friendly laid-back personality, Sam Coe's cowboy look and that he's voiced by the actor who voiced Adam Jenson from Deus Ex: Human Revolution, and Vasco.
Being able to customize your own ship was a nice touch, plus I've seen people made some cool looking ships online.
And I like some of the side missions like one has you investigating an "alien" ship above a paradise planet while another has you going to a different planet and meeting famous historical figures like FDR.
I like to think I'm an optimist.