I quite liked Outer Worlds, but though I made it through to the end I was glad when it was done and never played the DLC. If it's better than the main game then perhaps one day I'll return to it!
I liked both the base game and DLCs just fine, but I paid enough attention to the marketing to have pretty modest expectaitons. OW is rather shallow and I felt it by the end of vanilla playthrough. DLCs only make it more clearer. This was definitely a game where DLCs would be better of as stand alone adventures. I would recommend the DLCs, but replaying the whole game for the 2nd time to play them - not so much.
Okay, thanks for the steer! Given that it sounds as though our judgement on the base game might have been similar, I'll trust you on the DLC too and not rush to a replay for its sake .
"You may call it 'nonsense' if you like, but I've heard nonsense, compared with which that would be as sensible as a dictionary!"