New Vegas is merely good, not great. I'll still buy a remaster from the kikes at Bethesda. But it's no masterpiece.

The worldbuilding and is excellent. But the actual main plot and the choice between the four factions is mediocre at best. It's way more of a power fantasy that a lot of its fans like to admit.

It's a main quest with zero conflict. Once you're in Vegas, you decide which person you like and win, win, win. There's no point where there even seems to be a possibility of failure and whichever factions you're opposing never do or say anything meaningful to threaten you. (And if they do, they have no story behind them, like Centurions attacking you at level 5. It's not a plot point. It's just random nameless guys.) Even if you do fail a mission, there's no sense of despair or fear or really even worry. It's just "Darn it, that's annoying try to do better next time. Now on to the next mission..."