I think at the baseline, each "home" V gets after completing NPC quests should function completely as the base apartment does, even down to little trivial stuff like the shower (turns out there's actually showers in the Aldecaldo camp too!). But I do wish there was more follow-up content with the companion NPC's, and it wouldn't even need to be anything particularly drastic in scope, like being able to take them to one of the clubs in the city, or even the roller coaster in Pacifica. Bonus points if one of them even comments about going all the way down to godawful Pacifica to do it.